{"title":"Double Slot Linear Diffusers | Aluminum HVAC Vent Covers | Flo-Matrix","description":"\u003cp\u003eDouble slot linear diffusers are designed for applications requiring increased airflow capacity while maintaining a modern, architectural appearance. Featuring two air slots, these aluminum HVAC diffusers provide improved air distribution flexibility for residential, commercial, and high-end custom building projects.\u003c\/p\u003e\n\u003cp\u003eAvailable in 19mm and 25mm slot widths, Flo-Matrix double slot diffusers offer multiple airflow configurations to suit different HVAC system requirements. Custom lengths, finishes, and \u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" target=\"_blank\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\"\u003ematching plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e are available to support both new installations and retrofit applications.\u003c\/p\u003e","products":[{"product_id":"12-linear-slot-diffuser-2-slots-with-19mm-slot-openings-hvac-vent-cover-matte-white-finish","title":"12\" Linear Slot Diffuser Vent Cover (2 Slots with 19mm Openings) - Matte White - FLO-MATRIX HVAC","description":"\u003cdiv\u003e\n\u003ch5\u003eDetails\u003c\/h5\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThis 12-inch linear slot diffuser features a crisp white finish that blends seamlessly into modern interiors. Its heavy-duty extruded aluminum construction stands up to daily use in both commercial buildings and homes. The dual-slot design delivers stronger airflow than standard single-slot models, while the 19mm adjustable blades let you direct air precisely across a full 180-degree range. HVAC professionals and architects appreciate how it balances architectural aesthetics with VAV system performance. Want to see how it distributes air? Our smoke test video demonstrates real-world operation. \u003cstrong\u003eFor optimal results, we recommend having a qualified technician handle installation.\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Design \u0026amp; Fit:\u003c\/strong\u003e With a 12\" x 3¼\" nominal size, this linear slot diffuser features two crisp, ¾\" openings for a sharp, modern look that seamlessly integrates into any ceiling. (\u003cem\u003eCheck the size diagram for exact measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrevents Ceiling Smudges \u0026amp; Stains:\u003c\/strong\u003e A built-in gasket creates an airtight seal against the ceiling. This stops air leakage, protects your ceiling from dust marks, and ensures airflow is directed perfectly through the slotted vent covers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty \u0026amp; Built to Last:\u003c\/strong\u003e : Constructed from commercial-grade \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e. It's reinforced with Tig welds to prevent cracking, chipping, or bending, guaranteeing a lifetime of reliable performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrisp, Durable Finish:\u003c\/strong\u003e Finished in a premium matte white, this strong powder coat is specifically chosen for its superior defense against scratches, corrosion, and fading, ensuring long-lasting beauty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSleek, No-Visible-Screw Design:\u003c\/strong\u003e Achieve a clean, minimalist installation with no screws showing on the face of the register. All fastening points are cleverly hidden on the inner sides for a flawless finish. (Please note: fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTailor Your Airflow:\u003c\/strong\u003e For ultimate control, easily pair this unit with a \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecustom plenum box\u003c\/a\u003e\u003c\/span\u003e (sold separately) to fine-tune performance for any HVAC system. See our video guide to learn more about plenum options.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"Full dimensions of a white 12 inch 2-slot linear diffuser with 19mm openings for precision airflow in commercial HVAC systems\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-12-inch-2-slot-white-fulldimensions-flomatrix-hvac.jpg?v=1745871836\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Request a Quote for Linear Slot Diffusers\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" alt=\"White double linear slot diffuser installed on the wall for modern HVAC air distribution and seamless interior design\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Double_Linear_Slot_Diffuser_White_Short_length_Installed_Photo.jpg?v=1780354694\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e64\u003cbr\u003e93\u003cbr\u003e125\u003cbr\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.09\u003cbr\u003e0.18\u003cbr\u003e0.31\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e40\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Contact Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/span\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/collections\/linear-slot-diffuser-double-slots-with-25mm-wide-slot-opening\" title=\"Linear Slot Diffuser - 25mm wide openings - 2 Slots Vent Covers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003eNeed more airflow? See the enhanced airflow 2-slots diffuser\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"The Flo-Matrix Difference: Premium Linear Slot Diffusers vs Generic HVAC Vents\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_2-slot_submittal_high_resolution_download.pdf?v=1750374563\" title=\"Linear Slot Diffuser (two slots) Submittal Sheet High Resolution PDF Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Linear Slot Diffuser -2-slot submittal\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-2-slot-submittal-flomatrix-hvac.jpg?v=1745871836\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Key Characteristics of Commercial-Grade Air Distribution Products\u003c\/h4\u003e\n\u003cp\u003eCommercial-grade grilles, registers, and diffusers are defined by one crucial element: complete and accurate technical data. This information empowers architects, engineers, and HVAC contractors to make informed decisions, providing clear details on material grades and comprehensive performance specifications like noise levels (NC), airflow capacity, and pressure drop.\u003c\/p\u003e\n\u003cp\u003eWe ensure our products meet this high bar through rigorous testing in accordance with ASHRAE 70-2006 and ADC1062:GRD-84. Our development process harnesses the power of \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e to innovate and improve, resulting in designs that maximize energy efficiency and airflow control.\u003c\/p\u003e\n\u003cp\u003eWe have manufactured premium linear slot diffusers (1-12 slot options) for the commercial HVAC industry since 1997. For personalized guidance tailored to your project’s needs, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003econtact our product specialists\u003c\/a\u003e\u003c\/span\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Us Form - Flo-Matrix HVAC\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e at +1-604-437-1527.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\n\u003cspan style=\"text-decoration: underline;\"\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/h4\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":41733550964899,"sku":"FWASD19-2\/114.5W\/333L\/PCWS02","price":41.7,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-12-inch-2-slot-white-frontview-flomatrix-hvac.png?v=1745871836"},{"product_id":"16-linear-slot-diffuser-2-slots-with-19mm-slot-openings-hvac-vent-cover-matte-white-finish","title":"16\" Linear Slot Diffuser Vent Cover (2 Slots with 19mm Openings) - Matte White - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThis 16-inch linear slot diffuser features a crisp white finish that blends seamlessly into modern interiors. Its heavy-duty extruded aluminum construction stands up to daily use in both commercial buildings and homes. The dual-slot design delivers stronger airflow than standard single-slot models, while the 19mm adjustable blades let you direct air precisely across a full 180-degree range. HVAC professionals and architects appreciate how it balances architectural aesthetics with VAV system performance. Want to see how it distributes air? Our smoke test video demonstrates real-world operation. \u003cstrong\u003eFor optimal results, we recommend having a qualified technician handle installation.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Design \u0026amp; Fit:\u003c\/strong\u003e With a 16\" x 3¼\" nominal size, this linear slot diffuser features two crisp, ¾\" openings for a sharp, modern look that seamlessly integrates into any ceiling. (\u003cem\u003eCheck the size diagram for exact measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrevents Ceiling Smudges \u0026amp; Stains:\u003c\/strong\u003e A built-in gasket creates an airtight seal against the ceiling. This stops air leakage, protects your ceiling from dust marks, and ensures airflow is directed perfectly through the slotted vent covers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty \u0026amp; Built to Last:\u003c\/strong\u003e : Constructed from commercial-grade \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e. It's reinforced with Tig welds to prevent cracking, chipping, or bending, guaranteeing a lifetime of reliable performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrisp, Durable Finish:\u003c\/strong\u003e Finished in a premium matte white, this strong powder coat is specifically chosen for its superior defense against scratches, corrosion, and fading, ensuring long-lasting beauty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSleek, No-Visible-Screw Design:\u003c\/strong\u003e Achieve a clean, minimalist installation with no screws showing on the face of the register. All fastening points are cleverly hidden on the inner sides for a flawless finish. (Please note: fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTailor Your Airflow:\u003c\/strong\u003e For ultimate control, easily pair this unit with a \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecustom plenum box\u003c\/a\u003e\u003c\/span\u003e (sold separately) to fine-tune performance for any HVAC system. See our video guide to learn more about plenum options.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-16-inch-2-slot-white-fulldimensions-flomatrix-hvac.jpg?v=1745872649\" alt=\"Full dimensions of a white 16 inch 2-slot linear diffuser with 19mm openings for precision airflow in commercial HVAC systems\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" title=\"Request a Quote for Linear Slot Diffusers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Double_Linear_Slot_Diffuser_White_Short_length_Installed_Photo.jpg?v=1780354694\" alt=\"White double linear slot diffuser installed on the wall for modern HVAC air distribution and seamless interior design\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e85\u003cbr\u003e125\u003cbr\u003e166\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.09\u003cbr\u003e0.18\u003cbr\u003e0.31\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e40\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\" style=\"height: 58.7812px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 58.7812px;\"\u003e\n\u003ctd style=\"height: 58.7812px;\"\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Contact Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/span\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/collections\/linear-slot-diffuser-double-slots-with-25mm-wide-slot-opening\" title=\"Linear Slot Diffuser - 25mm wide openings - 2 Slots Vent Covers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003eNeed more airflow? See the enhanced airflow 2-slots diffuser\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"Why Flo-Matrix HVAC Linear Slot Diffusers Outperform Generic HVAC Vent Cover Suppliers\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_2-slot_submittal_high_resolution_download.pdf?v=1750374563\" title=\"Linear Slot Diffuser (two slots) Submittal Sheet High Resolution PDF Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-2-slot-submittal-flomatrix-hvac.jpg?v=1745872649\" alt=\"Linear Slot Diffuser -2-slot submittal\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Key Characteristics of Commercial-Grade Air Distribution Products\u003c\/h4\u003e\n\u003cp\u003eCommercial-grade grilles, registers, and diffusers are defined by one crucial element: complete and accurate technical data. This information empowers architects, engineers, and HVAC contractors to make informed decisions, providing clear details on material grades and comprehensive performance specifications like noise levels (NC), airflow capacity, and pressure drop.\u003c\/p\u003e\n\u003cp\u003eWe ensure our products meet this high bar through rigorous testing in accordance with ASHRAE 70-2006 and ADC1062:GRD-84. Our development process harnesses the power of \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD\u003c\/a\u003e\u003c\/span\u003e\u003ca rel=\"noopener\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" target=\"_blank\"\u003e\u003c\/a\u003e to innovate and improve, resulting in designs that maximize energy efficiency and airflow control.\u003c\/p\u003e\n\u003cp\u003eWe have manufactured premium linear slot diffusers (1-12 slot options) for the commercial HVAC industry since 1997. For personalized guidance tailored to your project’s needs, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003econtact our product specialists\u003c\/a\u003e\u003c\/span\u003e at +1-604-437-1527.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":41733572231331,"sku":"FWASD19-2\/114.5W\/434L\/PCWS02","price":43.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-16-inch-2-slot-white-frontview-flomatrix-hvac.png?v=1745872649"},{"product_id":"20-linear-slot-diffuser-2-slots-with-19mm-slot-openings-hvac-vent-cover-matte-white-finish","title":"20\" Linear Slot Diffuser Vent Cover (2 Slots with 19mm Openings) - Matte White - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThis 20-inch linear slot diffuser features a crisp white finish that blends seamlessly into modern interiors. Its heavy-duty extruded aluminum construction stands up to daily use in both commercial buildings and homes. The dual-slot design delivers stronger airflow than standard single-slot models, while the 19mm adjustable blades let you direct air precisely across a full 180-degree range. HVAC professionals and architects appreciate how it balances architectural aesthetics with VAV system performance. Want to see how it distributes air? Our smoke test video demonstrates real-world operation. \u003cstrong\u003eFor optimal results, we recommend having a qualified technician handle installation.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Design \u0026amp; Fit:\u003c\/strong\u003e With a 20\" x 3¼\" nominal size, this linear slot diffuser features two crisp, ¾\" openings for a sharp, modern look that seamlessly integrates into any ceiling. (\u003cem\u003eCheck the size diagram for exact measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrevents Ceiling Smudges \u0026amp; Stains:\u003c\/strong\u003e A built-in gasket creates an airtight seal against the ceiling. This stops air leakage, protects your ceiling from dust marks, and ensures airflow is directed perfectly through the slotted vent covers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty \u0026amp; Built to Last:\u003c\/strong\u003e : Constructed from commercial-grade \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e. It's reinforced with Tig welds to prevent cracking, chipping, or bending, guaranteeing a lifetime of reliable performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrisp, Durable Finish:\u003c\/strong\u003e Finished in a premium matte white, this strong powder coat is specifically chosen for its superior defense against scratches, corrosion, and fading, ensuring long-lasting beauty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSleek, No-Visible-Screw Design:\u003c\/strong\u003e Achieve a clean, minimalist installation with no screws showing on the face of the register. All fastening points are cleverly hidden on the inner sides for a flawless finish. (Please note: fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTailor Your Airflow:\u003c\/strong\u003e For ultimate control, easily pair this unit with a \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecustom plenum box\u003c\/a\u003e\u003c\/span\u003e (sold separately) to fine-tune performance for any HVAC system. See our video guide to learn more about plenum options.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Full dimensions of a white 20 inch 2-slot linear diffuser with 19mm openings for precision airflow in commercial HVAC systems\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-20-inch-2-slot-white-fulldimensions-flomatrix-hvac.jpg?v=1745874770\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" title=\"Request a Quote for Linear Slot Diffusers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Double_Linear_Slot_Diffuser_White_Short_length_Installed_Photo.jpg?v=1780354694\" alt=\"White double linear slot diffuser installed on the wall for modern HVAC air distribution and seamless interior design\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e107\u003cbr\u003e156\u003cbr\u003e208\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.09\u003cbr\u003e0.18\u003cbr\u003e0.31\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e40\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Contact Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/span\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/collections\/linear-slot-diffuser-double-slots-with-25mm-wide-slot-opening\" title=\"Linear Slot Diffuser - 25mm wide openings - 2 Slots Vent Covers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003eNeed more airflow? See the enhanced airflow 2-slots diffuser\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"Why Flo-Matrix HVAC Linear Slot Diffusers Outperform Generic HVAC Vent Cover Suppliers\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_2-slot_submittal_high_resolution_download.pdf?v=1750374563\" title=\"Linear Slot Diffuser (two slots) Submittal Sheet High Resolution PDF Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Linear Slot Diffuser -2-slot submittal\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-2-slot-submittal-flomatrix-hvac.jpg?v=1745874770\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Key Characteristics of Commercial-Grade Air Distribution Products\u003c\/h4\u003e\n\u003cp\u003eCommercial-grade grilles, registers, and diffusers are defined by one crucial element: complete and accurate technical data. This information empowers architects, engineers, and HVAC contractors to make informed decisions, providing clear details on material grades and comprehensive performance specifications like noise levels (NC), airflow capacity, and pressure drop.\u003c\/p\u003e\n\u003cp\u003eWe ensure our products meet this high bar through rigorous testing in accordance with ASHRAE 70-2006 and ADC1062:GRD-84. Our development process harnesses the power of \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e\u003ca rel=\"noopener\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" target=\"_blank\"\u003e\u003c\/a\u003e to innovate and improve, resulting in designs that maximize energy efficiency and airflow control.\u003c\/p\u003e\n\u003cp\u003eWe have manufactured premium linear slot diffusers (1-12 slot options) for the commercial HVAC industry since 1997. For personalized guidance tailored to your project’s needs, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003econtact our product specialists\u003c\/a\u003e\u003c\/span\u003e\u003ca rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003e\u003c\/a\u003e at +1-604-437-1527.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":41733582749859,"sku":"FWASD19-2\/114.5W\/536L\/PCWS02","price":52.96,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-20-inch-2-slot-white-frontview-flomatrix-hvac.png?v=1745874770"},{"product_id":"24-linear-slot-diffuser-2-slots-with-19mm-slot-openings-hvac-vent-cover-matte-white-finish","title":"24\" Linear Slot Diffuser Vent Cover (2 Slots with 19mm Openings) - Matte White - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThis 24-inch linear slot diffuser features a crisp white finish that blends seamlessly into modern interiors. Its heavy-duty extruded aluminum construction stands up to daily use in both commercial buildings and homes. The dual-slot design delivers stronger airflow than standard single-slot models, while the 19mm adjustable blades let you direct air precisely across a full 180-degree range. HVAC professionals and architects appreciate how it balances architectural aesthetics with VAV system performance. Want to see how it distributes air? Our smoke test video demonstrates real-world operation. \u003cstrong\u003eFor optimal results, we recommend having a qualified technician handle installation.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Design \u0026amp; Fit:\u003c\/strong\u003e With a 24\" x 3¼\" nominal size, this linear slot diffuser features two crisp, ¾\" openings for a sharp, modern look that seamlessly integrates into any ceiling. (\u003cem\u003eCheck the size diagram for exact measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrevents Ceiling Smudges \u0026amp; Stains:\u003c\/strong\u003e A built-in gasket creates an airtight seal against the ceiling. This stops air leakage, protects your ceiling from dust marks, and ensures airflow is directed perfectly through the slotted vent covers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty \u0026amp; Built to Last:\u003c\/strong\u003e : Constructed from commercial-grade \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e. It's reinforced with Tig welds to prevent cracking, chipping, or bending, guaranteeing a lifetime of reliable performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrisp, Durable Finish:\u003c\/strong\u003e Finished in a premium matte white, this strong powder coat is specifically chosen for its superior defense against scratches, corrosion, and fading, ensuring long-lasting beauty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSleek, No-Visible-Screw Design:\u003c\/strong\u003e Achieve a clean, minimalist installation with no screws showing on the face of the register. All fastening points are cleverly hidden on the inner sides for a flawless finish. (Please note: fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTailor Your Airflow:\u003c\/strong\u003e For ultimate control, easily pair this unit with a \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecustom plenum box\u003c\/a\u003e\u003c\/span\u003e (sold separately) to fine-tune performance for any HVAC system. See our video guide to learn more about plenum options.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-24-inch-2-slot-white-fulldimensions-flomatrix-hvac.jpg?v=1745876830\" alt=\"Full dimensions of a white 24 inch 2-slot linear diffuser with 19mm openings for precision airflow in commercial HVAC systems\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" title=\"Request a Quote for Linear Slot Diffusers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Double_Linear_Slot_Diffuser_White_Short_length_Installed_Photo.jpg?v=1780354694\" alt=\"White double linear slot diffuser installed on the wall for modern HVAC air distribution and seamless interior design\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e128\u003cbr\u003e187\u003cbr\u003e250\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.09\u003cbr\u003e0.18\u003cbr\u003e0.31\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e40\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Contact Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/span\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/collections\/linear-slot-diffuser-double-slots-with-25mm-wide-slot-opening\" title=\"Linear Slot Diffuser - 25mm wide openings - 2 Slots Vent Covers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003eNeed more airflow? See the enhanced airflow 2-slots diffuser\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/fwasd19-2-vs-fwasd25-2-linear-slot-diffuser-comparison-commercial-hvac_resized.png?v=1780964738\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/fwasd19-2-vs-fwasd25-2-linear-slot-diffuser-comparison-commercial-hvac_resized.png?v=1780964738\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"Why Flo-Matrix HVAC Linear Slot Diffusers Outperform Generic HVAC Vent Cover Suppliers\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_2-slot_submittal_high_resolution_download.pdf?v=1750374563\" title=\"Linear Slot Diffuser (two slots) Submittal Sheet High Resolution PDF Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-2-slot-submittal-flomatrix-hvac.jpg?v=1745876830\" alt=\"Linear Slot Diffuser -2-slot submittal\"\u003e\u003c\/p\u003e\n\u003ch5\u003e\u003cbr\u003e\u003c\/h5\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Key Characteristics of Commercial-Grade Air Distribution Products\u003c\/h4\u003e\n\u003cp\u003eCommercial-grade grilles, registers, and diffusers are defined by one crucial element: complete and accurate technical data. This information empowers architects, engineers, and HVAC contractors to make informed decisions, providing clear details on material grades and comprehensive performance specifications like noise levels (NC), airflow capacity, and pressure drop.\u003c\/p\u003e\n\u003cp\u003eWe ensure our products meet this high bar through rigorous testing in accordance with ASHRAE 70-2006 and ADC1062:GRD-84. Our development process harnesses the power of \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e to innovate and improve, resulting in designs that maximize energy efficiency and airflow control.\u003c\/p\u003e\n\u003cp\u003eWe have manufactured premium linear slot diffusers (1-12 slot options) for the commercial HVAC industry since 1997. For personalized guidance tailored to your project’s needs, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003econtact our product specialists\u003c\/a\u003e\u003c\/span\u003e\u003ca rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003e\u003c\/a\u003e at +1-604-437-1527.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":41733586747555,"sku":"FWASD19-2\/114.5W\/638L\/PCWS02","price":59.9,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-24-inch-2-slot-white-frontview-flomatrix-hvac.png?v=1745876830"},{"product_id":"32-linear-slot-diffuser-2-slots-with-19mm-slot-openings-hvac-vent-cover-matte-white-finish","title":"32\" Linear Slot Diffuser Vent Cover (2 Slots with 19mm Openings) - Matte White - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThis 32-inch linear slot diffuser features a crisp white finish that blends seamlessly into modern interiors. Its heavy-duty extruded aluminum construction stands up to daily use in both commercial buildings and homes. The dual-slot design delivers stronger airflow than standard single-slot models, while the 19mm adjustable blades let you direct air precisely across a full 180-degree range. HVAC professionals and architects appreciate how it balances architectural aesthetics with VAV system performance. Want to see how it distributes air? Our smoke test video demonstrates real-world operation.\u003cstrong\u003e For optimal results, we recommend having a qualified technician handle installation.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Design \u0026amp; Fit:\u003c\/strong\u003e With a 32\" x 3¼\" nominal size, this linear slot diffuser features two crisp, ¾\" openings for a sharp, modern look that seamlessly integrates into any ceiling. (\u003cem\u003eCheck the size diagram for exact measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrevents Ceiling Smudges \u0026amp; Stains:\u003c\/strong\u003e A built-in gasket creates an airtight seal against the ceiling. This stops air leakage, protects your ceiling from dust marks, and ensures airflow is directed perfectly through the slotted vent covers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty \u0026amp; Built to Last:\u003c\/strong\u003e : Constructed from commercial-grade \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e. It's reinforced with Tig welds to prevent cracking, chipping, or bending, guaranteeing a lifetime of reliable performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrisp, Durable Finish:\u003c\/strong\u003e Finished in a premium matte white, this strong powder coat is specifically chosen for its superior defense against scratches, corrosion, and fading, ensuring long-lasting beauty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSleek, No-Visible-Screw Design:\u003c\/strong\u003e Achieve a clean, minimalist installation with no screws showing on the face of the register. All fastening points are cleverly hidden on the inner sides for a flawless finish. (Please note: fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTailor Your Airflow:\u003c\/strong\u003e For ultimate control, easily pair this unit with a \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecustom plenum box\u003c\/a\u003e\u003c\/span\u003e (sold separately) to fine-tune performance for any HVAC system. See our video guide to learn more about plenum options.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"Full dimensions of a white 32 inch 2-slot linear diffuser with 19mm openings for precision airflow in commercial HVAC systems\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-32-inch-2-slot-white-fulldimensions-flomatrix-hvac.jpg?v=1745877295\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" title=\"Request a Quote for Linear Slot Diffusers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Double_Linear_Slot_Diffuser_White_Short_length_Installed_Photo.jpg?v=1780354694\" alt=\"White double linear slot diffuser installed on the wall for modern HVAC air distribution and seamless interior design\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e171\u003cbr\u003e250\u003cbr\u003e333\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.09\u003cbr\u003e0.18\u003cbr\u003e0.31\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e40\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Contact Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/span\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/collections\/linear-slot-diffuser-double-slots-with-25mm-wide-slot-opening\" title=\"Linear Slot Diffuser - 25mm wide openings - 2 Slots Vent Covers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003eNeed more airflow? See the enhanced airflow 2-slots diffuser\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/fwasd19-2-vs-fwasd25-2-linear-slot-diffuser-comparison-commercial-hvac_resized.png?v=1780964738\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/fwasd19-2-vs-fwasd25-2-linear-slot-diffuser-comparison-commercial-hvac_resized.png?v=1780964738\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"Why Flo-Matrix HVAC Is Different From Other Linear Slot Diffuser Suppliers\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_2-slot_submittal_high_resolution_download.pdf?v=1750374563\" title=\"Linear Slot Diffuser (two slots) Submittal Sheet High Resolution PDF Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-2-slot-submittal-flomatrix-hvac.jpg?v=1745266458\" alt=\"Linear Slot Diffuser -2-slot submittal\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Key Characteristics of Commercial-Grade Air Distribution Products\u003c\/h4\u003e\n\u003cp\u003eCommercial-grade grilles, registers, and diffusers are defined by one crucial element: complete and accurate technical data. This information empowers architects, engineers, and HVAC contractors to make informed decisions, providing clear details on material grades and comprehensive performance specifications like noise levels (NC), airflow capacity, and pressure drop.\u003c\/p\u003e\n\u003cp\u003eWe ensure our products meet this high bar through rigorous testing in accordance with ASHRAE 70-2006 and ADC1062:GRD-84. Our development process harnesses the power of \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e\u003ca rel=\"noopener\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" target=\"_blank\"\u003e\u003c\/a\u003e to innovate and improve, resulting in designs that maximize energy efficiency and airflow control.\u003c\/p\u003e\n\u003cp\u003eWe have manufactured premium linear slot diffusers (1-12 slot options) for the commercial HVAC industry since 1997. For personalized guidance tailored to your project’s needs, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Us Form - Flo-Matrix HVAC\" rel=\"noopener\" target=\"_blank\"\u003econtact our product specialists\u003c\/a\u003e\u003c\/span\u003e\u003ca rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003e\u003c\/a\u003e at +1-604-437-1527.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":41733596643491,"sku":"FWASD19-2\/114.5W\/841L\/PCWS02","price":85.19,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-32-inch-2-slot-white-frontview-flomatrix-hvac.png?v=1745877295"},{"product_id":"36-linear-slot-diffuser-2-slots-with-19mm-slot-openings-hvac-vent-cover-matte-white-finish","title":"36\" Linear Slot Diffuser Vent Cover (2 Slots with 19mm Openings) - Matte White - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThis 36-inch linear slot diffuser features a crisp white finish that blends seamlessly into modern interiors. Its heavy-duty extruded aluminum construction stands up to daily use in both commercial buildings and homes. The dual-slot design delivers stronger airflow than standard single-slot models, while the 19mm adjustable blades let you direct air precisely across a full 180-degree range. HVAC professionals and architects appreciate how it balances architectural aesthetics with VAV system performance. Want to see how it distributes air? Our smoke test video demonstrates real-world operation. \u003cstrong\u003eFor optimal results, we recommend having a qualified technician handle installation.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Design \u0026amp; Fit:\u003c\/strong\u003e With a 36\" x 3¼\" nominal size, this linear slot diffuser features two crisp, ¾\" openings for a sharp, modern look that seamlessly integrates into any ceiling. (\u003cem\u003eCheck the size diagram for exact measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrevents Ceiling Smudges \u0026amp; Stains:\u003c\/strong\u003e A built-in gasket creates an airtight seal against the ceiling. This stops air leakage, protects your ceiling from dust marks, and ensures airflow is directed perfectly through the slotted vent covers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty \u0026amp; Built to Last:\u003c\/strong\u003e : Constructed from commercial-grade \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e. It's reinforced with Tig welds to prevent cracking, chipping, or bending, guaranteeing a lifetime of reliable performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrisp, Durable Finish:\u003c\/strong\u003e Finished in a premium matte white, this strong powder coat is specifically chosen for its superior defense against scratches, corrosion, and fading, ensuring long-lasting beauty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSleek, No-Visible-Screw Design:\u003c\/strong\u003e Achieve a clean, minimalist installation with no screws showing on the face of the register. All fastening points are cleverly hidden on the inner sides for a flawless finish. (Please note: fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTailor Your Airflow:\u003c\/strong\u003e For ultimate control, easily pair this unit with a \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" target=\"_blank\"\u003ecustom plenum box\u003c\/a\u003e\u003c\/span\u003e (sold separately) to fine-tune performance for any HVAC system. See our video guide to learn more about plenum options.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-36-inch-2-slot-white-fulldimensions-flomatrix-hvac.jpg?v=1745877702\" alt=\"Full dimensions of a white 36 inch 2-slot linear diffuser with 19mm openings for precision airflow in commercial HVAC systems\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" title=\"Request a Quote for Linear Slot Diffusers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Double_Linear_Slot_Diffuser_White_Short_length_Installed_Photo.jpg?v=1780354694\" alt=\"White double linear slot diffuser installed on the wall for modern HVAC air distribution and seamless interior design\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e192\u003cbr\u003e281\u003cbr\u003e375\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.09\u003cbr\u003e0.18\u003cbr\u003e0.31\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e40\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Contact Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/span\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/collections\/linear-slot-diffuser-double-slots-with-25mm-wide-slot-opening\" title=\"Linear Slot Diffuser - 25mm wide openings - 2 Slots Vent Covers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003eNeed more airflow? See the enhanced airflow 2-slots diffuser\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/fwasd19-2-vs-fwasd25-2-linear-slot-diffuser-comparison-commercial-hvac_resized.png?v=1780964738\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/fwasd19-2-vs-fwasd25-2-linear-slot-diffuser-comparison-commercial-hvac_resized.png?v=1780964738\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"The Flo-Matrix Difference: Premium Linear Slot Diffusers vs Generic HVAC Vents\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser (two slots) Submittal Sheet High Resolution PDF Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_2-slot_submittal_high_resolution_download.pdf?v=1750374563\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Linear Slot Diffuser -2-slot submittal\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-2-slot-submittal-flomatrix-hvac.jpg?v=1745266458\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Key Characteristics of Commercial-Grade Air Distribution Products\u003c\/h4\u003e\n\u003cp\u003eCommercial-grade grilles, registers, and diffusers are defined by one crucial element: complete and accurate technical data. This information empowers architects, engineers, and HVAC contractors to make informed decisions, providing clear details on material grades and comprehensive performance specifications like noise levels (NC), airflow capacity, and pressure drop.\u003c\/p\u003e\n\u003cp\u003eWe ensure our products meet this high bar through rigorous testing in accordance with ASHRAE 70-2006 and ADC1062:GRD-84. Our development process harnesses the power of \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e\u003ca rel=\"noopener\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" target=\"_blank\"\u003e\u003c\/a\u003e to innovate and improve, resulting in designs that maximize energy efficiency and airflow control.\u003c\/p\u003e\n\u003cp\u003eWe have manufactured premium linear slot diffusers (1-12 slot options) for the commercial HVAC industry since 1997. For personalized guidance tailored to your project’s needs, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Us Form - Flo-Matrix HVAC\" rel=\"noopener\" target=\"_blank\"\u003econtact our product specialists\u003c\/a\u003e\u003c\/span\u003e\u003ca rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003e\u003c\/a\u003e at +1-604-437-1527.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":41733630132387,"sku":"FWASD19-2\/114.5W\/942L\/PCWS02","price":88.46,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-36-inch-2-slot-white-frontview-flomatrix-hvac.png?v=1745877702"},{"product_id":"48-linear-slot-diffuser-2-slots-with-19mm-slot-openings-hvac-vent-cover-matte-white-finish","title":"48\" Linear Slot Diffuser Vent Cover  (2 Slots with 19mm Openings) - Matte White - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThis 48-inch linear slot diffuser features a crisp white finish that blends seamlessly into modern interiors. Its heavy-duty extruded aluminum construction stands up to daily use in both commercial buildings and homes. The dual-slot design delivers stronger airflow than standard single-slot models, while the 19mm adjustable blades let you direct air precisely across a full 180-degree range. HVAC professionals and architects appreciate how it balances architectural aesthetics with VAV system performance. Want to see how it distributes air? Our smoke test video demonstrates real-world operation. \u003cstrong\u003eFor optimal results, we recommend having a qualified technician handle installation.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Design \u0026amp; Fit:\u003c\/strong\u003e With a 48\" x 3¼\" nominal size, this linear slot diffuser features two crisp, ¾\" openings for a sharp, modern look that seamlessly integrates into any ceiling. (\u003cem\u003eCheck the size diagram for exact measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrevents Ceiling Smudges \u0026amp; Stains:\u003c\/strong\u003e A built-in gasket creates an airtight seal against the ceiling. This stops air leakage, protects your ceiling from dust marks, and ensures airflow is directed perfectly through the slotted vent covers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty \u0026amp; Built to Last:\u003c\/strong\u003e : Constructed from commercial-grade \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e. It's reinforced with Tig welds to prevent cracking, chipping, or bending, guaranteeing a lifetime of reliable performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrisp, Durable Finish:\u003c\/strong\u003e Finished in a premium matte white, this strong powder coat is specifically chosen for its superior defense against scratches, corrosion, and fading, ensuring long-lasting beauty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSleek, No-Visible-Screw Design:\u003c\/strong\u003e Achieve a clean, minimalist installation with no screws showing on the face of the register. All fastening points are cleverly hidden on the inner sides for a flawless finish. (Please note: fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTailor Your Airflow:\u003c\/strong\u003e For ultimate control, easily pair this unit with a \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" target=\"_blank\"\u003ecustom plenum box\u003c\/a\u003e\u003c\/span\u003e (sold separately) to fine-tune performance for any HVAC system. See our video guide to learn more about plenum options.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"Full dimensions of a white 48 inch 2-slot linear diffuser with 19mm openings for precision airflow in commercial HVAC systems\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-48-inch-2-slot-white-fulldimensions-flomatrix-hvac.jpg?v=1745877987\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" title=\"Request a Quote for Linear Slot Diffusers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Double_Linear_Slot_Diffuser_White_Short_length_Installed_Photo.jpg?v=1780354694\" alt=\"White double linear slot diffuser installed on the wall for modern HVAC air distribution and seamless interior design\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e257\u003cbr\u003e375\u003cbr\u003e500\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.09\u003cbr\u003e0.18\u003cbr\u003e0.31\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e40\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Contact Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/span\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/collections\/linear-slot-diffuser-double-slots-with-25mm-wide-slot-opening\" title=\"Linear Slot Diffuser - 25mm wide openings - 2 Slots Vent Covers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003eNeed more airflow? See the enhanced airflow 2-slots diffuser\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/fwasd19-2-vs-fwasd25-2-linear-slot-diffuser-comparison-commercial-hvac_resized.png?v=1780964738\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/fwasd19-2-vs-fwasd25-2-linear-slot-diffuser-comparison-commercial-hvac_resized.png?v=1780964738\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"The Flo-Matrix Difference: Premium Linear Slot Diffusers vs Generic HVAC Vents\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser (two slots) Submittal Sheet High Resolution PDF Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_2-slot_submittal_high_resolution_download.pdf?v=1750374563\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-2-slot-submittal-flomatrix-hvac.jpg?v=1745266458\" alt=\"Linear Slot Diffuser -2-slot submittal\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Key Characteristics of Commercial-Grade Air Distribution Products\u003c\/h4\u003e\n\u003cp\u003eCommercial-grade grilles, registers, and diffusers are defined by one crucial element: complete and accurate technical data. This information empowers architects, engineers, and HVAC contractors to make informed decisions, providing clear details on material grades and comprehensive performance specifications like noise levels (NC), airflow capacity, and pressure drop.\u003c\/p\u003e\n\u003cp\u003eWe ensure our products meet this high bar through rigorous testing in accordance with ASHRAE 70-2006 and ADC1062:GRD-84. Our development process harnesses the power of \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e to innovate and improve, resulting in designs that maximize energy efficiency and airflow control.\u003c\/p\u003e\n\u003cp\u003eWe have manufactured premium linear slot diffusers (1-12 slot options) for the commercial HVAC industry since 1997. For personalized guidance tailored to your project’s needs, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Us Form - Flo-Matrix HVAC\" rel=\"noopener\" target=\"_blank\"\u003econtact our product specialists\u003c\/a\u003e\u003c\/span\u003e at +1-604-437-1527.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":41733649694883,"sku":"FWASD19-2\/114.5W\/1247L\/PCWS02","price":117.06,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-48-inch-2-slot-white-frontview-flomatrix-hvac.png?v=1745877987"},{"product_id":"22-linear-slot-diffuser-2-slots-with-19mm-slot-openings-hvac-vent-cover-matte-white-finish","title":"22\" Linear Slot Diffuser Vent Cover (2 Slots with 19mm Openings) - Matte White - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThis 22-inch linear slot diffuser features a crisp white finish that blends seamlessly into modern interiors. Its heavy-duty extruded aluminum construction stands up to daily use in both commercial buildings and homes. The dual-slot design delivers stronger airflow than standard single-slot models, while the 19mm adjustable blades let you direct air precisely across a full 180-degree range. HVAC professionals and architects appreciate how it balances architectural aesthetics with VAV system performance. Want to see how it distributes air? Our smoke test video demonstrates real-world operation. \u003cstrong\u003eFor optimal results, we recommend having a qualified technician handle installation.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Design \u0026amp; Fit:\u003c\/strong\u003e With a 22\" x 3¼\" nominal size, this linear slot diffuser features two crisp, ¾\" openings for a sharp, modern look that seamlessly integrates into any ceiling. (\u003cem\u003eCheck the size diagram for exact measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrevents Ceiling Smudges \u0026amp; Stains:\u003c\/strong\u003e A built-in gasket creates an airtight seal against the ceiling. This stops air leakage, protects your ceiling from dust marks, and ensures airflow is directed perfectly through the slotted vent covers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty \u0026amp; Built to Last:\u003c\/strong\u003e : Constructed from commercial-grade \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e. It's reinforced with Tig welds to prevent cracking, chipping, or bending, guaranteeing a lifetime of reliable performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrisp, Durable Finish:\u003c\/strong\u003e Finished in a premium matte white, this strong powder coat is specifically chosen for its superior defense against scratches, corrosion, and fading, ensuring long-lasting beauty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSleek, No-Visible-Screw Design:\u003c\/strong\u003e Achieve a clean, minimalist installation with no screws showing on the face of the register. All fastening points are cleverly hidden on the inner sides for a flawless finish. (Please note: fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTailor Your Airflow:\u003c\/strong\u003e For ultimate control, easily pair this unit with a \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecustom plenum box\u003c\/a\u003e\u003c\/span\u003e (sold separately) to fine-tune performance for any HVAC system. See our video guide to learn more about plenum options.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Full dimensions of a white 22 inch 2-slot linear diffuser with 19mm openings for precision airflow in commercial HVAC systems\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-22-inch-2-slot-white-fulldimensions-flomatrix-hvac.jpg?v=1745875162\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" title=\"Request a Quote for Linear Slot Diffusers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Double_Linear_Slot_Diffuser_White_Short_length_Installed_Photo.jpg?v=1780354694\" alt=\"White double linear slot diffuser installed on the wall for modern HVAC air distribution and seamless interior design\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e117\u003cbr\u003e171\u003cbr\u003e229\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.09\u003cbr\u003e0.18\u003cbr\u003e0.31\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e40\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Contact Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/span\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/collections\/linear-slot-diffuser-double-slots-with-25mm-wide-slot-opening\" title=\"Linear Slot Diffuser - 25mm wide openings - 2 Slots Vent Covers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003eNeed more airflow? See the enhanced airflow 2-slots diffuser\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"Why Flo-Matrix HVAC Is Different From Other Linear Slot Diffuser Suppliers\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_2-slot_submittal_high_resolution_download.pdf?v=1750374563\" title=\"Linear Slot Diffuser (two slots) Submittal Sheet High Resolution PDF Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Linear Slot Diffuser -2-slot submittal\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-2-slot-submittal-flomatrix-hvac.jpg?v=1745875162\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Key Characteristics of Commercial-Grade Air Distribution Products\u003c\/h4\u003e\n\u003cp\u003eCommercial-grade grilles, registers, and diffusers are defined by one crucial element: complete and accurate technical data. This information empowers architects, engineers, and HVAC contractors to make informed decisions, providing clear details on material grades and comprehensive performance specifications like noise levels (NC), airflow capacity, and pressure drop.\u003c\/p\u003e\n\u003cp\u003eWe ensure our products meet this high bar through rigorous testing in accordance with ASHRAE 70-2006 and ADC1062:GRD-84. Our development process harnesses the power of \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e to innovate and improve, resulting in designs that maximize energy efficiency and airflow control.\u003c\/p\u003e\n\u003cp\u003eWe have manufactured premium linear slot diffusers (1-12 slot options) for the commercial HVAC industry since 1997. For personalized guidance tailored to your project’s needs, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003econtact our product specialists\u003c\/a\u003e\u003c\/span\u003e\u003ca rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003e\u003c\/a\u003e at +1-604-437-1527.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":41733654610083,"sku":"FWASD19-2\/114.5W\/588L\/PCWS02","price":55.21,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-22-inch-2-slot-white-frontview-flomatrix-hvac.png?v=1745875162"},{"product_id":"24-linear-slot-diffuser-2-slots-with-19mm-slot-openings-hvac-vent-cover-matte-black-finish","title":"24\" Linear Slot Diffuser Vent Cover (2 Slots with 19mm Openings) - Matte Black - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThe 24-inch linear slot diffuser delivers both form and function with its matte black finish and heavy-duty extruded aluminum build. Designed for architects and HVAC pros, this dual-slot model moves more air than single-slot versions while maintaining precise control via 19mm adjustable blades (up to a 180° air pattern). Perfect for VAV systems and general airflow in commercial or residential spaces, it combines architectural-grade durability with optimized performance. Check our smoke test video to see it in action in the videos section. \u003cstrong\u003eProfessional installation recommended for best results.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Design \u0026amp; Fit:\u003c\/strong\u003e With a 24\" x 3¼\" nominal size, this linear slot diffuser features two crisp, ¾\" openings for a sharp, modern look that seamlessly integrates into any ceiling. (\u003cem\u003eCheck the size diagram for exact measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrevents Ceiling Smudges \u0026amp; Stains:\u003c\/strong\u003e A built-in gasket creates an airtight seal against the ceiling. This stops air leakage, protects your ceiling from dust marks, and ensures airflow is directed perfectly through the slotted vent covers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty \u0026amp; Built to Last:\u003c\/strong\u003e : Constructed from commercial-grade \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e. It's reinforced with Tig welds to prevent cracking, chipping, or bending, guaranteeing a lifetime of reliable performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Matte Black Finish:\u003c\/strong\u003e Features a sleek, matte black powder coat finish. This is not only for its modern appeal but also for its exceptional resistance to corrosion, scuffs, and daily wear and tear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSleek, No-Visible-Screw Design:\u003c\/strong\u003e Achieve a clean, minimalist installation with no screws showing on the face of the register. All fastening points are cleverly hidden on the inner sides for a flawless finish. (Please note: fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTailor Your Airflow:\u003c\/strong\u003e For ultimate control, easily pair this unit with a \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecustom plenum box\u003c\/a\u003e\u003c\/span\u003e (sold separately) to fine-tune performance for any HVAC system. See our video guide to learn more about plenum options.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-24-inch-2-slot-black-fulldimensions-flomatrix-hvac.jpg?v=1745272099\" alt=\"Full dimensions of a black 24-inch 2-slot linear diffuser with 19mm openings for precision airflow in commercial HVAC systems\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" title=\"Request a Quote for Linear Slot Diffusers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/double-linear-slot-diffuser-black-installed-commercial-hvac.jpg?v=1780957985\" alt=\"Double linear slot diffuser in black finish installed in a ceiling HVAC system, providing modern architectural air distribution for commercial buildings, offices, hotels, retail spaces, and custom residential homes.\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e128\u003cbr\u003e187\u003cbr\u003e250\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.09\u003cbr\u003e0.18\u003cbr\u003e0.31\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e40\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Contact Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/span\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/collections\/linear-slot-diffuser-double-slots-with-25mm-wide-slot-opening\" title=\"Linear Slot Diffuser - 25mm wide openings - 2 Slots Vent Covers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003eNeed more airflow? See the enhanced airflow 2-slots diffuser\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"Why Flo-Matrix HVAC Is Different From Other Linear Slot Diffuser Suppliers\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_2-slot_submittal_high_resolution_download.pdf?v=1750374563\" title=\"Linear Slot Diffuser (two slots) Submittal Sheet High Resolution PDF Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-2-slot-submittal-flomatrix-hvac_147063a2-0565-40da-bfea-73d67ce336ea.jpg?v=1745272099\" alt=\"Linear Slot Diffuser -2-slot submittal\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Key Characteristics of Commercial-Grade Air Distribution Products\u003c\/h4\u003e\n\u003cp\u003eCommercial-grade grilles, registers, and diffusers are defined by one crucial element: complete and accurate technical data. This information empowers architects, engineers, and HVAC contractors to make informed decisions, providing clear details on material grades and comprehensive performance specifications like noise levels (NC), airflow capacity, and pressure drop.\u003c\/p\u003e\n\u003cp\u003eWe ensure our products meet this high bar through rigorous testing in accordance with ASHRAE 70-2006 and ADC1062:GRD-84. Our development process harnesses the power of \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e\u003ca rel=\"noopener\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" target=\"_blank\"\u003e\u003c\/a\u003e to innovate and improve, resulting in designs that maximize energy efficiency and airflow control.\u003c\/p\u003e\n\u003cp\u003eWe have manufactured premium linear slot diffusers (1-12 slot options) for the commercial HVAC industry since 1997. For personalized guidance tailored to your project’s needs, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003econtact our product specialists\u003c\/a\u003e\u003c\/span\u003e at +1-604-437-1527.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":41733951717539,"sku":"FWASD19-2\/114.5W\/638L\/005","price":59.9,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-24-inch-2-slot-black-frontview-flomatrix-hvac.jpg?v=1745875333"},{"product_id":"48-linear-slot-diffuser-2-slots-with-19mm-slot-openings-hvac-vent-cover-matte-black-finish-wasd19-2","title":"48\" Linear Slot Diffuser Vent Cover (2 Slots with 19mm Openings) - Matte Black - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eThe 48-inch linear slot diffuser delivers both form and function with its matte black finish and heavy-duty extruded aluminum build. Designed for architects and HVAC pros, this dual-slot model moves more air than single-slot versions while maintaining precise control via 19mm adjustable blades (up to a 180° air pattern). Perfect for VAV systems and general airflow in commercial or residential spaces, it combines architectural-grade durability with optimized performance. Check our smoke test video to see it in action in the videos section. \u003cstrong\u003eProfessional installation recommended for best results.\u003c\/strong\u003e\u003c\/span\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Design \u0026amp; Fit:\u003c\/strong\u003e With a 48\" x 3¼\" nominal size, this linear slot diffuser features two crisp, ¾\" openings for a sharp, modern look that seamlessly integrates into any ceiling. (\u003cem\u003eCheck the size diagram for exact measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrevents Ceiling Smudges \u0026amp; Stains:\u003c\/strong\u003e A built-in gasket creates an airtight seal against the ceiling. This stops air leakage, protects your ceiling from dust marks, and ensures airflow is directed perfectly through the slotted vent covers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty \u0026amp; Built to Last:\u003c\/strong\u003e : Constructed from commercial-grade \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e. It's reinforced with Tig welds to prevent cracking, chipping, or bending, guaranteeing a lifetime of reliable performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Matte Black Finish:\u003c\/strong\u003e Features a sleek, matte black powder coat finish. This is not only for its modern appeal but also for its exceptional resistance to corrosion, scuffs, and daily wear and tear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSleek, No-Visible-Screw Design:\u003c\/strong\u003e Achieve a clean, minimalist installation with no screws showing on the face of the register. All fastening points are cleverly hidden on the inner sides for a flawless finish. (Please note: fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTailor Your Airflow:\u003c\/strong\u003e For ultimate control, easily pair this unit with a \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" target=\"_blank\"\u003ecustom plenum box\u003c\/a\u003e\u003c\/span\u003e (sold separately) to fine-tune performance for any HVAC system. See our video guide to learn more about plenum options.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-48-inch-2-slot-black-fulldimensions-flomatrix-hvac.jpg?v=1745274385\" alt=\"Full dimensions of a black 48-inch 2-slot linear diffuser with 19mm openings for precision airflow in commercial HVAC systems\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" title=\"Request a Quote for Linear Slot Diffusers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/double-linear-slot-diffuser-black-installed-commercial-hvac.jpg?v=1780957985\" alt=\"Double linear slot diffuser in black finish installed in a ceiling HVAC system, providing modern architectural air distribution for commercial buildings, offices, hotels, retail spaces, and custom residential homes.\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e257\u003cbr\u003e375\u003cbr\u003e500\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.09\u003cbr\u003e0.18\u003cbr\u003e0.31\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e40\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Contact Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/span\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/collections\/linear-slot-diffuser-double-slots-with-25mm-wide-slot-opening\" title=\"Linear Slot Diffuser - 25mm wide openings - 2 Slots Vent Covers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003eNeed more airflow? See the enhanced airflow 2-slots diffuser\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/fwasd19-2-vs-fwasd25-2-linear-slot-diffuser-comparison-commercial-hvac_resized.png?v=1780964738\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/fwasd19-2-vs-fwasd25-2-linear-slot-diffuser-comparison-commercial-hvac_resized.png?v=1780964738\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"Why Flo-Matrix HVAC Is Different From Other Linear Slot Diffuser Suppliers\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser (two slots) Submittal Sheet High Resolution PDF Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_2-slot_submittal_high_resolution_download.pdf?v=1750374563\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-2-slot-submittal-flomatrix-hvac_147063a2-0565-40da-bfea-73d67ce336ea.jpg?v=1745272099\" alt=\"Linear Slot Diffuser -2-slot submittal\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Key Characteristics of Commercial-Grade Air Distribution Products\u003c\/h4\u003e\n\u003cp\u003eCommercial-grade grilles, registers, and diffusers are defined by one crucial element: complete and accurate technical data. This information empowers architects, engineers, and HVAC contractors to make informed decisions, providing clear details on material grades and comprehensive performance specifications like noise levels (NC), airflow capacity, and pressure drop.\u003c\/p\u003e\n\u003cp\u003eWe ensure our products meet this high bar through rigorous testing in accordance with ASHRAE 70-2006 and ADC1062:GRD-84. Our development process harnesses the power of \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e\u003ca rel=\"noopener\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" target=\"_blank\"\u003e\u003c\/a\u003e to innovate and improve, resulting in designs that maximize energy efficiency and airflow control.\u003c\/p\u003e\n\u003cp\u003eWe have manufactured premium linear slot diffusers (1-12 slot options) for the commercial HVAC industry since 1997. For personalized guidance tailored to your project’s needs, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Us Form - Flo-Matrix HVAC\" rel=\"noopener\" target=\"_blank\"\u003econtact our product specialists\u003c\/a\u003e\u003c\/span\u003e\u003ca rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003e\u003c\/a\u003e at +1-604-437-1527.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":41737446391971,"sku":"FWASD19-2\/114.5W\/1247L\/005","price":117.06,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-48-inch-2-slot-black-frontview-flomatrix-hvac.png?v=1745878106"},{"product_id":"48-linear-slot-diffuser-2-slots-25mm-opening-hvac-vent-cover-white","title":"48\" Linear Slot Diffuser Vent Cover (2 Slots with 25mm Openings) - Matte White - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThe 48-inch linear slot diffuser delivers superior airflow with its sleek white finish and architectural-grade aluminum construction. Featuring dual 25mm slots with 180° adjustable blades, it provides 17% greater airflow than our standard two-slot 19mm models while reducing static pressure by 33%—optimizing HVAC efficiency without straining ductwork. Verified lab results confirm its performance for flow rate, noise levels, and pressure in the performance section. See our smoke test video to observe the precise air distribution in action. \u003cstrong\u003eProfessional installation recommended for optimal results.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean, Modern Design:\u003c\/strong\u003e With a 48\" x 3½\" nominal size, this linear slot diffuser is engineered with two sharp, 1-inch openings for a minimalist look that complements any commercial or residential space. (\u003cem\u003ePlease see the diagram for precise measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Velocity Airflow Performance:\u003c\/strong\u003e The wider 1-inch slot is a major upgrade from standard 19mm vent covers, enabling a significantly higher volume of air to move through quietly and efficiently for demanding HVAC systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEliminates Ceiling Dust Marks:\u003c\/strong\u003e An integrated gasket creates a perfect seal against the ceiling tile, preventing leaked air from causing unsightly smudges and ensuring all conditioned air is delivered into the room.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged Commercial Construction:\u003c\/strong\u003e Built from heavy-gauge \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e and fortified with robust Tig welds to withstand the rigors of daily use in any environment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrong Matte White Surface: \u003c\/strong\u003eFeatures a sophisticated matte white powder coat that is not only elegant but also remarkably resistant to wear, including scratches, corrosion, and fading.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless No-Screw Aesthetic:\u003c\/strong\u003e Achieve a flawless, uninterrupted look with a design that hides all mounting hardware on the interior edges for a clean install. (Note: Fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimize Your Air Distribution:\u003c\/strong\u003e For peak HVAC efficiency, pair this air diffuser with an \u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003ecustom plenum box\u003c\/span\u003e\u003c\/a\u003e (sold separately) to perfectly balance airflow. Check out our video to learn more.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-48-inch-2-slot-white-fulldimensions-flomatrix-hvac.png?v=1745454699\" alt=\"Full dimensions of a white 48 inch 2-slot linear diffuser with 25mm openings for high airflow in commercial HVAC systems\"\u003e\u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" title=\"Request a Quote for Linear Slot Diffusers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Double_Linear_Slot_Diffuser_White_Medium_high_airflow_Installed_Photo.jpg?v=1780433270\" alt=\"White double linear slot diffuser (high airflow) installed on the wall for modern HVAC air distribution and clean architectural design\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e275\u003cbr\u003e425\u003cbr\u003e500\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.06\u003cbr\u003e0.15\u003cbr\u003e0.20\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e35\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Flo-Matrix HVAC\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"Flo-Matrix HVAC vs Generic Vent Cover Companies: Quality, Performance \u0026amp; Support\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eSubmittal\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser_high_flow_two-slot_submittal_high_resolution_download.pdf?v=1750376288\" title=\"Linear Slot Diffuser high flow (two slots) Submittal Sheet High Resolution PDF Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-2-slot-submittal-flomatrix-hvac.jpg?v=1745454699\" alt=\"Linear Slot Diffuser high airflow 2-slot submittal\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Engineer's Standard for Commercial HVAC Grilles and Diffusers\u003c\/h4\u003e\n\u003cp\u003eIn professional HVAC design, \"commercial grade\" is a promise of performance, backed by data. It provides the detailed technical information—from the composition to certified metrics on NC (noise criteria), flow rates, and pressure drop—that engineers rely on for precise specification and predictable results.\u003c\/p\u003e\n\u003cp\u003eWe uphold this promise by subjecting our products to testing aligned with ASHRAE Standard 70-2006 and ADC1062:GRD-84. Our design philosophy leverages \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e to continuously innovate, creating energy-efficient solutions that meet the highest standards of modern building design.\u003c\/p\u003e\n\u003cp\u003eFor over two decades, since 1997, we have specialized in manufacturing high-performance linear slot diffusers (1-12 slots) for commercial applications. \u003cspan style=\"color: rgb(111, 160, 177);\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003eContact our product specialists\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e at +1-604-437-1527 for expert consultation on your next project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":41738446405795,"sku":"FWASD25-2\/125W\/1247L\/PCWS02","price":117.06,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-48-inch-2-slot-white-frontview-flomatrix-hvac.png?v=1745454699"},{"product_id":"16-linear-slot-diffuser-2-slots-with-25mm-slot-openings-hvac-vent-cover-matte-white-finish-wasd25-2","title":"16\" Linear Slot Diffuser Vent Cover (2 Slots with 25mm Openings) - Matte White - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThe 16-inch linear slot diffuser delivers superior airflow with its sleek white finish and architectural-grade aluminum construction. Featuring dual 25mm slots with 180° adjustable blades, it provides 17% greater airflow than our standard two-slot 19mm models while reducing static pressure by 33%—optimizing HVAC efficiency without straining ductwork. Verified lab results confirm its performance for flow rate, noise levels, and pressure in the performance section. See our smoke test video to observe the precise air distribution in action. \u003cstrong\u003eProfessional installation recommended for optimal results.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean, Modern Design:\u003c\/strong\u003e With a 16\" x 3½\" nominal size, this linear slot diffuser is engineered with two sharp, 1-inch openings for a minimalist look that complements any commercial or residential space. (\u003cem\u003ePlease see the diagram for precise measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Velocity Airflow Performance:\u003c\/strong\u003e The wider 1-inch slot is a major upgrade from standard 19mm vent covers, enabling a significantly higher volume of air to move through quietly and efficiently for demanding HVAC systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEliminates Ceiling Dust Marks:\u003c\/strong\u003e An integrated gasket creates a perfect seal against the ceiling tile, preventing leaked air from causing unsightly smudges and ensuring all conditioned air is delivered into the room.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged Commercial Construction:\u003c\/strong\u003e Built from heavy-gauge \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e and fortified with robust Tig welds to withstand the rigors of daily use in any environment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrong Matte White Surface: \u003c\/strong\u003eFeatures a sophisticated matte white powder coat that is not only elegant but also remarkably resistant to wear, including scratches, corrosion, and fading.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless No-Screw Aesthetic:\u003c\/strong\u003e Achieve a flawless, uninterrupted look with a design that hides all mounting hardware on the interior edges for a clean install. (Note: Fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimize Your Air Distribution:\u003c\/strong\u003e For peak HVAC efficiency, pair this air diffuser with an \u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003ecustom plenum box\u003c\/span\u003e\u003c\/a\u003e (sold separately) to perfectly balance airflow. Check out our video to learn more.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-16-inch-2-slot-white-fulldimensions-flomatrix-hvac.jpg?v=1745879430\" alt=\"Full dimensions of a white 16 inch 2-slot linear diffuser with 25mm openings for high airflow in commercial HVAC systems\"\u003e\u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" title=\"Request a Quote for Linear Slot Diffusers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Double_Linear_Slot_Diffuser_White_Medium_high_airflow_Installed_Photo.jpg?v=1780433270\" alt=\"White double linear slot diffuser (high airflow) installed on the wall for modern HVAC air distribution and clean architectural design\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e91\u003cbr\u003e141\u003cbr\u003e166\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.06\u003cbr\u003e0.15\u003cbr\u003e0.20\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e35\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Flo-Matrix HVAC\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"Premium Linear Slot Diffusers: How Flo-Matrix HVAC Stands Above Generic Suppliers\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003ch5\u003e\u003cbr\u003e\u003c\/h5\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser_high_flow_two-slot_submittal_high_resolution_download.pdf?v=1750376288\" title=\"Linear Slot Diffuser high flow (two slots) Submittal Sheet High Resolution PDF Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-2-slot-submittal-flomatrix-hvac.jpg?v=1745879430\" alt=\"Linear Slot Diffuser high airflow 2-slot submittal\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Engineer's Standard for Commercial HVAC Grilles and Diffusers\u003c\/h4\u003e\n\u003cp\u003eIn professional HVAC design, \"commercial grade\" is a promise of performance, backed by data. It provides the detailed technical information—from the composition to certified metrics on NC (noise criteria), flow rates, and pressure drop—that engineers rely on for precise specification and predictable results.\u003c\/p\u003e\n\u003cp\u003eWe uphold this promise by subjecting our products to testing aligned with ASHRAE Standard 70-2006 and ADC1062:GRD-84. Our design philosophy leverages \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e to continuously innovate, creating energy-efficient solutions that meet the highest standards of modern building design.\u003c\/p\u003e\n\u003cp\u003eFor over two decades, since 1997, we have specialized in manufacturing high-performance linear slot diffusers (1-12 slots) for commercial applications. \u003cspan style=\"color: rgb(111, 160, 177);\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003eContact our product specialists\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e at +1-604-437-1527 for expert consultation on your next project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":41738483859619,"sku":"FWASD25-2\/125W\/434L\/PCWS02","price":43.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-16-inch-2-slot-white-frontview-flomatrix-hvac.png?v=1745879779"},{"product_id":"20-linear-slot-diffuser-2-slots-with-25mm-slot-openings-hvac-vent-cover-matte-white-finish-wasd25-2","title":"20\" Linear Slot Diffuser Vent Cover (2 Slots with 25mm Openings) - Matte White - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThe 20-inch linear slot diffuser delivers superior airflow with its sleek white finish and architectural-grade aluminum construction. Featuring dual 25mm slots with 180° adjustable blades, it provides 17% greater airflow than our standard two-slot 19mm models while reducing static pressure by 33%—optimizing HVAC efficiency without straining ductwork. Verified lab results confirm its performance for flow rate, noise levels, and pressure in the performance section. See our smoke test video to observe the precise air distribution in action. \u003cstrong\u003eProfessional installation recommended for optimal results.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean, Modern Design:\u003c\/strong\u003e With a 20\" x 3½\" nominal size, this linear slot diffuser is engineered with two sharp, 1-inch openings for a minimalist look that complements any commercial or residential space. (\u003cem\u003ePlease see the diagram for precise measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Velocity Airflow Performance:\u003c\/strong\u003e The wider 1-inch slot is a major upgrade from standard 19mm vent covers, enabling a significantly higher volume of air to move through quietly and efficiently for demanding HVAC systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEliminates Ceiling Dust Marks:\u003c\/strong\u003e An integrated gasket creates a perfect seal against the ceiling tile, preventing leaked air from causing unsightly smudges and ensuring all conditioned air is delivered into the room.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged Commercial Construction:\u003c\/strong\u003e Built from heavy-gauge \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e and fortified with robust Tig welds to withstand the rigors of daily use in any environment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrong Matte White Surface: \u003c\/strong\u003eFeatures a sophisticated matte white powder coat that is not only elegant but also remarkably resistant to wear, including scratches, corrosion, and fading.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless No-Screw Aesthetic:\u003c\/strong\u003e Achieve a flawless, uninterrupted look with a design that hides all mounting hardware on the interior edges for a clean install. (Note: Fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimize Your Air Distribution:\u003c\/strong\u003e For peak HVAC efficiency, pair this air diffuser with an \u003ca rel=\"noopener\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" target=\"_blank\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003ecustom plenum box\u003c\/span\u003e\u003c\/a\u003e (sold separately) to perfectly balance airflow. Check out our video to learn more.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"Full dimensions of a white 20 inch 2-slot linear diffuser with 25mm openings for high airflow in commercial HVAC systems\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-20-inch-2-slot-white-fulldimensions-flomatrix-hvac.jpg?v=1745881583\"\u003e\u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Request a Quote for Linear Slot Diffusers\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Double_Linear_Slot_Diffuser_White_Medium_high_airflow_Installed_Photo.jpg?v=1780433270\" alt=\"White double linear slot diffuser (high airflow) installed on the wall for modern HVAC air distribution and clean architectural design\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e114\u003cbr\u003e177\u003cbr\u003e208\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.06\u003cbr\u003e0.15\u003cbr\u003e0.20\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e35\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Contact Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"Flo-Matrix HVAC vs Generic Vent Cover Companies: Quality, Performance \u0026amp; Support\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser high flow (two slots) Submittal Sheet High Resolution PDF Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser_high_flow_two-slot_submittal_high_resolution_download.pdf?v=1750376288\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Linear Slot Diffuser high airflow 2-slot submittal\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-2-slot-submittal-flomatrix-hvac.jpg?v=1745881583\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Engineer's Standard for Commercial HVAC Grilles and Diffusers\u003c\/h4\u003e\n\u003cp\u003eIn professional HVAC design, \"commercial grade\" is a promise of performance, backed by data. It provides the detailed technical information—from the composition to certified metrics on NC (noise criteria), flow rates, and pressure drop—that engineers rely on for precise specification and predictable results.\u003c\/p\u003e\n\u003cp\u003eWe uphold this promise by subjecting our products to testing aligned with ASHRAE Standard 70-2006 and ADC1062:GRD-84. Our design philosophy leverages \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e to continuously innovate, creating energy-efficient solutions that meet the highest standards of modern building design.\u003c\/p\u003e\n\u003cp\u003eFor over two decades, since 1997, we have specialized in manufacturing high-performance linear slot diffusers (1-12 slots) for commercial applications. \u003cspan style=\"color: rgb(111, 160, 177);\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Us Form - Flo-Matrix HVAC\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eContact our product specialists\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e at +1-604-437-1527 for expert consultation on your next project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":41738493165731,"sku":"FWASD25-2\/125W\/536L\/PCWS02","price":52.96,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-20-inch-2-slot-white-frontview-flomatrix-hvac.png?v=1745881583"},{"product_id":"24-linear-slot-diffuser-2-slots-with-25mm-slot-openings-hvac-vent-cover-matte-white-finish-wasd25-2","title":"24\" Linear Slot Diffuser Vent Cover (2 Slots with 25mm Openings) - Matte White - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThe 24-inch linear slot diffuser delivers superior airflow with its sleek white finish and architectural-grade aluminum construction. Featuring dual 25mm slots with 180° adjustable blades, it provides 17% greater airflow than our standard two-slot 19mm models while reducing static pressure by 33%—optimizing HVAC efficiency without straining ductwork. Verified lab results confirm its performance for flow rate, noise levels, and pressure in the performance section. See our smoke test video to observe the precise air distribution in action. \u003cstrong\u003eProfessional installation recommended for optimal results.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean, Modern Design:\u003c\/strong\u003e With a 24\" x 3½\" nominal size, this linear slot diffuser is engineered with two sharp, 1-inch openings for a minimalist look that complements any commercial or residential space. (\u003cem\u003ePlease see the diagram for precise measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Velocity Airflow Performance:\u003c\/strong\u003e The wider 1-inch slot is a major upgrade from standard 19mm vent covers, enabling a significantly higher volume of air to move through quietly and efficiently for demanding HVAC systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEliminates Ceiling Dust Marks:\u003c\/strong\u003e An integrated gasket creates a perfect seal against the ceiling tile, preventing leaked air from causing unsightly smudges and ensuring all conditioned air is delivered into the room.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged Commercial Construction:\u003c\/strong\u003e Built from heavy-gauge \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e and fortified with robust Tig welds to withstand the rigors of daily use in any environment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrong Matte White Surface: \u003c\/strong\u003eFeatures a sophisticated matte white powder coat that is not only elegant but also remarkably resistant to wear, including scratches, corrosion, and fading.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless No-Screw Aesthetic:\u003c\/strong\u003e Achieve a flawless, uninterrupted look with a design that hides all mounting hardware on the interior edges for a clean install. (Note: Fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimize Your Air Distribution:\u003c\/strong\u003e For peak HVAC efficiency, pair this air diffuser with an \u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003ecustom plenum box\u003c\/span\u003e\u003c\/a\u003e (sold separately) to perfectly balance airflow. Check out our video to learn more.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-24-inch-2-slot-white-fulldimensions-flomatrix-hvac.png?v=1745882593\" alt=\"Full dimensions of a white 24 inch 2-slot linear diffuser with 25mm openings for high airflow in commercial HVAC systems\"\u003e\u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" title=\"Request a Quote for Linear Slot Diffusers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Double_Linear_Slot_Diffuser_White_Medium_high_airflow_Installed_Photo.jpg?v=1780433270\" alt=\"White double linear slot diffuser (high airflow) installed on the wall for modern HVAC air distribution and clean architectural design\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e137\u003cbr\u003e212\u003cbr\u003e250\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.06\u003cbr\u003e0.15\u003cbr\u003e0.20\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e35\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Flo-Matrix HVAC\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"Premium Linear Slot Diffusers: How Flo-Matrix HVAC Stands Above Generic Suppliers\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser_high_flow_two-slot_submittal_high_resolution_download.pdf?v=1750376288\" title=\"Linear Slot Diffuser high flow (two slots) Submittal Sheet High Resolution PDF Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-2-slot-submittal-flomatrix-hvac.jpg?v=1745882593\" alt=\"Linear Slot Diffuser high airflow 2-slot submittal\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Engineer's Standard for Commercial HVAC Grilles and Diffusers\u003c\/h4\u003e\n\u003cp\u003eIn professional HVAC design, \"commercial grade\" is a promise of performance, backed by data. It provides the detailed technical information—from the composition to certified metrics on NC (noise criteria), flow rates, and pressure drop—that engineers rely on for precise specification and predictable results.\u003c\/p\u003e\n\u003cp\u003eWe uphold this promise by subjecting our products to testing aligned with ASHRAE Standard 70-2006 and ADC1062:GRD-84. Our design philosophy leverages \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e to continuously innovate, creating energy-efficient solutions that meet the highest standards of modern building design.\u003c\/p\u003e\n\u003cp\u003eFor over two decades, since 1997, we have specialized in manufacturing high-performance linear slot diffusers (1-12 slots) for commercial applications. \u003cspan style=\"color: rgb(111, 160, 177);\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003eContact our product specialists\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e at +1-604-437-1527 for expert consultation on your next project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":41738497425571,"sku":"FWASD25-2\/125W\/638L\/PCWS02","price":59.9,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-24-inch-2-slot-white-frontview-flomatrix-hvac.png?v=1745882593"},{"product_id":"32-linear-slot-diffuser-2-slots-with-25mm-slot-openings-hvac-vent-cover-matte-white-finish-wasd25-2","title":"32\" Linear Slot Diffuser Vent Cover (2 Slots with 25mm Openings) - Matte White - FLO-MATRIX HVAC","description":"\u003ch5\u003e\n\u003cspan\u003eDetails\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThe 32-inch linear slot diffuser delivers superior airflow with its sleek white finish and architectural-grade aluminum construction. Featuring dual 25mm slots with 180° adjustable blades, it provides 17% greater airflow than our standard two-slot 19mm models while reducing static pressure by 33%—optimizing HVAC efficiency without straining ductwork. Verified lab results confirm its performance for flow rate, noise levels, and pressure in the performance section. See our smoke test video to observe the precise air distribution in action. \u003cstrong\u003eProfessional installation recommended for optimal results.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean, Modern Design:\u003c\/strong\u003e With a 32\" x 3½\" nominal size, this linear slot diffuser is engineered with two sharp, 1-inch openings for a minimalist look that complements any commercial or residential space. (\u003cem\u003ePlease see the diagram for precise measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Velocity Airflow Performance:\u003c\/strong\u003e The wider 1-inch slot is a major upgrade from standard 19mm vent covers, enabling a significantly higher volume of air to move through quietly and efficiently for demanding HVAC systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEliminates Ceiling Dust Marks:\u003c\/strong\u003e An integrated gasket creates a perfect seal against the ceiling tile, preventing leaked air from causing unsightly smudges and ensuring all conditioned air is delivered into the room.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged Commercial Construction:\u003c\/strong\u003e Built from heavy-gauge \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e and fortified with robust Tig welds to withstand the rigors of daily use in any environment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrong Matte White Surface: \u003c\/strong\u003eFeatures a sophisticated matte white powder coat that is not only elegant but also remarkably resistant to wear, including scratches, corrosion, and fading.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless No-Screw Aesthetic:\u003c\/strong\u003e Achieve a flawless, uninterrupted look with a design that hides all mounting hardware on the interior edges for a clean install. (Note: Fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimize Your Air Distribution:\u003c\/strong\u003e For peak HVAC efficiency, pair this air diffuser with an \u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003ecustom plenum box\u003c\/span\u003e\u003c\/a\u003e (sold separately) to perfectly balance airflow. Check out our video to learn more.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-32-inch-2-slot-white-fulldimensions-flomatrix-hvac.jpg?v=1745449968\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" title=\"Request a Quote for Linear Slot Diffusers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Double_Linear_Slot_Diffuser_White_Medium_high_airflow_Installed_Photo.jpg?v=1780433270\" alt=\"White double linear slot diffuser (high airflow) installed on the wall for modern HVAC air distribution and clean architectural design\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e183\u003cbr\u003e283\u003cbr\u003e333\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.06\u003cbr\u003e0.15\u003cbr\u003e0.20\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e35\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Flo-Matrix HVAC\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"What Makes Flo-Matrix HVAC the Preferred Choice for Linear Slot Diffusers\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser_high_flow_two-slot_submittal_high_resolution_download.pdf?v=1750376288\" title=\"Linear Slot Diffuser high flow (two slots) Submittal Sheet High Resolution PDF Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-2-slot-submittal-flomatrix-hvac.jpg?v=1745449968\" alt=\"Linear Slot Diffuser high airflow 2-slot submittal\"\u003e\u003c\/p\u003e\n\u003ch5\u003e\u003cbr\u003e\u003c\/h5\u003e\n\u003ch5\u003e\u003cbr\u003e\u003c\/h5\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Engineer's Standard for Commercial HVAC Grilles and Diffusers\u003c\/h4\u003e\n\u003cp\u003eIn professional HVAC design, \"commercial grade\" is a promise of performance, backed by data. It provides the detailed technical information—from the composition to certified metrics on NC (noise criteria), flow rates, and pressure drop—that engineers rely on for precise specification and predictable results.\u003c\/p\u003e\n\u003cp\u003eWe uphold this promise by subjecting our products to testing aligned with ASHRAE Standard 70-2006 and ADC1062:GRD-84. Our design philosophy leverages \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e to continuously innovate, creating energy-efficient solutions that meet the highest standards of modern building design.\u003c\/p\u003e\n\u003cp\u003eFor over two decades, since 1997, we have specialized in manufacturing high-performance linear slot diffusers (1-12 slots) for commercial applications. \u003cspan style=\"color: rgb(111, 160, 177);\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003eContact our product specialists\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e at +1-604-437-1527 for expert consultation on your next project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":41738501947555,"sku":"FWASD25-2\/125W\/841L\/PCWS02","price":85.19,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-32-inch-2-slot-white-frontview-flomatrix-hvac.png?v=1745882763"},{"product_id":"36-linear-slot-diffuser-2-slots-with-25mm-slot-openings-hvac-vent-cover-matte-white-finish-wasd25-2","title":"36\" Linear Slot Diffuser Vent Cover (2 Slots with 25mm Openings) - Matte White - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThe 36-inch linear slot diffuser delivers superior airflow with its sleek white finish and architectural-grade aluminum construction. Featuring dual 25mm slots with 180° adjustable blades, it provides 17% greater airflow than our standard two-slot 19mm models while reducing static pressure by 33%—optimizing HVAC efficiency without straining ductwork. Verified lab results confirm its performance for flow rate, noise levels, and pressure in the performance section. See our smoke test video to observe the precise air distribution in action. \u003cstrong\u003eProfessional installation recommended for optimal results.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean, Modern Design:\u003c\/strong\u003e With a 36\" x 3½\" nominal size, this linear slot diffuser is engineered with two sharp, 1-inch openings for a minimalist look that complements any commercial or residential space. (\u003cem\u003ePlease see the diagram for precise measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Velocity Airflow Performance:\u003c\/strong\u003e The wider 1-inch slot is a major upgrade from standard 19mm vent covers, enabling a significantly higher volume of air to move through quietly and efficiently for demanding HVAC systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEliminates Ceiling Dust Marks:\u003c\/strong\u003e An integrated gasket creates a perfect seal against the ceiling tile, preventing leaked air from causing unsightly smudges and ensuring all conditioned air is delivered into the room.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged Commercial Construction:\u003c\/strong\u003e Built from heavy-gauge \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e and fortified with robust Tig welds to withstand the rigors of daily use in any environment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrong Matte White Surface: \u003c\/strong\u003eFeatures a sophisticated matte white powder coat that is not only elegant but also remarkably resistant to wear, including scratches, corrosion, and fading.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless No-Screw Aesthetic:\u003c\/strong\u003e Achieve a flawless, uninterrupted look with a design that hides all mounting hardware on the interior edges for a clean install. (Note: Fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimize Your Air Distribution:\u003c\/strong\u003e For peak HVAC efficiency, pair this air diffuser with an \u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003ecustom plenum box\u003c\/span\u003e\u003c\/a\u003e (sold separately) to perfectly balance airflow. Check out our video to learn more.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-36-inch-2-slot-white-fulldimensions-flomatrix-hvac.jpg?v=1745453004\" alt=\"Full dimensions of a white 36 inch 2-slot linear diffuser with 25mm openings for high airflow in commercial HVAC systems\"\u003e\u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" title=\"Request a Quote for Linear Slot Diffusers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Double_Linear_Slot_Diffuser_White_Medium_high_airflow_Installed_Photo.jpg?v=1780433270\" alt=\"White double linear slot diffuser (high airflow) installed on the wall for modern HVAC air distribution and clean architectural design\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003ch5\u003e\u003cbr\u003e\u003c\/h5\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e206\u003cbr\u003e318\u003cbr\u003e375\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.06\u003cbr\u003e0.15\u003cbr\u003e0.20\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e35\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Flo-Matrix HVAC\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"Flo-Matrix HVAC vs Generic Vent Cover Companies: Quality, Performance \u0026amp; Support\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser_high_flow_two-slot_submittal_high_resolution_download.pdf?v=1750376288\" title=\"Linear Slot Diffuser high flow (two slots) Submittal Sheet High Resolution PDF Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-2-slot-submittal-flomatrix-hvac.jpg?v=1745453481\" alt=\"Linear Slot Diffuser high airflow 2-slot submittal\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Engineer's Standard for Commercial HVAC Grilles and Diffusers\u003c\/h4\u003e\n\u003cp\u003eIn professional HVAC design, \"commercial grade\" is a promise of performance, backed by data. It provides the detailed technical information—from the composition to certified metrics on NC (noise criteria), flow rates, and pressure drop—that engineers rely on for precise specification and predictable results.\u003c\/p\u003e\n\u003cp\u003eWe uphold this promise by subjecting our products to testing aligned with ASHRAE Standard 70-2006 and ADC1062:GRD-84. Our design philosophy leverages \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e to continuously innovate, creating energy-efficient solutions that meet the highest standards of modern building design.\u003c\/p\u003e\n\u003cp\u003eFor over two decades, since 1997, we have specialized in manufacturing high-performance linear slot diffusers (1-12 slots) for commercial applications. \u003cspan style=\"color: rgb(111, 160, 177);\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003eContact our product specialists\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e at +1-604-437-1527 for expert consultation on your next project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":41738516201635,"sku":"FWASD25-2\/125W\/942L\/PCWS02","price":88.46,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-36-inch-2-slot-white-frontview-flomatrix-hvac.png?v=1745453004"},{"product_id":"22-linear-slot-diffuser-2-slots-with-25mm-slot-openings-hvac-vent-cover-matte-white-finish-wasd25-2","title":"22\" Linear Slot Diffuser Vent Cover (2 Slots with 25mm Openings) - Matte White - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThe 22-inch linear slot diffuser delivers superior airflow with its sleek white finish and architectural-grade aluminum construction. Featuring dual 25mm slots with 180° adjustable blades, it provides 17% greater airflow than our standard two-slot 19mm models while reducing static pressure by 33%—optimizing HVAC efficiency without straining ductwork. Verified lab results confirm its performance for flow rate, noise levels, and pressure in the performance section. See our smoke test video to observe the precise air distribution in action. \u003cstrong\u003eProfessional installation recommended for optimal results.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean, Modern Design:\u003c\/strong\u003e With a 22\" x 3½\" nominal size, this linear slot diffuser is engineered with two sharp, 1-inch openings for a minimalist look that complements any commercial or residential space. (\u003cem\u003ePlease see the diagram for precise measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Velocity Airflow Performance:\u003c\/strong\u003e The wider 1-inch slot is a major upgrade from standard 19mm vent covers, enabling a significantly higher volume of air to move through quietly and efficiently for demanding HVAC systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEliminates Ceiling Dust Marks:\u003c\/strong\u003e An integrated gasket creates a perfect seal against the ceiling tile, preventing leaked air from causing unsightly smudges and ensuring all conditioned air is delivered into the room.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged Commercial Construction:\u003c\/strong\u003e Built from heavy-gauge \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e and fortified with robust Tig welds to withstand the rigors of daily use in any environment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrong Matte White Surface: \u003c\/strong\u003eFeatures a sophisticated matte white powder coat that is not only elegant but also remarkably resistant to wear, including scratches, corrosion, and fading.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless No-Screw Aesthetic:\u003c\/strong\u003e Achieve a flawless, uninterrupted look with a design that hides all mounting hardware on the interior edges for a clean install. (Note: Fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimize Your Air Distribution:\u003c\/strong\u003e For peak HVAC efficiency, pair this air diffuser with an \u003ca rel=\"noopener\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" target=\"_blank\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003ecustom plenum box\u003c\/span\u003e\u003c\/a\u003e (sold separately) to perfectly balance airflow. Check out our video to learn more.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-22-inch-2-slot-white-fulldimensions-flomatrix-hvac.jpg?v=1745882073\" alt=\"Full dimensions of a white 22 inch 2-slot linear diffuser with 25mm openings for high airflow in commercial HVAC systems\"\u003e\u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Request a Quote for Linear Slot Diffusers\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Double_Linear_Slot_Diffuser_White_Medium_high_airflow_Installed_Photo.jpg?v=1780433270\" alt=\"White double linear slot diffuser (high airflow) installed on the wall for modern HVAC air distribution and clean architectural design\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e126\u003cbr\u003e194\u003cbr\u003e229\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.06\u003cbr\u003e0.15\u003cbr\u003e0.20\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e35\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Contact Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"Flo-Matrix HVAC vs Generic Vent Cover Companies: Quality, Performance \u0026amp; Support\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser high flow (two slots) Submittal Sheet High Resolution PDF Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser_high_flow_two-slot_submittal_high_resolution_download.pdf?v=1750376288\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-2-slot-submittal-flomatrix-hvac.jpg?v=1745882100\" alt=\"Linear Slot Diffuser high airflow 2-slot submittal\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Engineer's Standard for Commercial HVAC Grilles and Diffusers\u003c\/h4\u003e\n\u003cp\u003eIn professional HVAC design, \"commercial grade\" is a promise of performance, backed by data. It provides the detailed technical information—from the composition to certified metrics on NC (noise criteria), flow rates, and pressure drop—that engineers rely on for precise specification and predictable results.\u003c\/p\u003e\n\u003cp\u003eWe uphold this promise by subjecting our products to testing aligned with ASHRAE Standard 70-2006 and ADC1062:GRD-84. Our design philosophy leverages \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e to continuously innovate, creating energy-efficient solutions that meet the highest standards of modern building design.\u003c\/p\u003e\n\u003cp\u003eFor over two decades, since 1997, we have specialized in manufacturing high-performance linear slot diffusers (1-12 slots) for commercial applications. \u003cspan style=\"color: rgb(111, 160, 177);\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Us Form - Flo-Matrix HVAC\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eContact our product specialists\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e at +1-604-437-1527 for expert consultation on your next project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":41738536648867,"sku":"FWASD25-2\/125W\/588L\/PCWS02","price":55.21,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-22-inch-2-slot-white-frontview-flomatrix-hvac.png?v=1745882073"},{"product_id":"24-linear-slot-diffuser-2-slots-with-25mm-slot-openings-hvac-vent-cover-matte-black-finish-wasd25-2","title":"24\" Linear Slot Diffuser Vent Cover (2 Slots with 25mm Openings) - Matte Black - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThis 24-inch linear slot diffuser in matte black combines durability and performance with its architectural-grade extruded aluminum construction. Perfect for VAV systems and general air distribution, its dual 25mm slots with 180° adjustable blades boost airflow by 17% over our 19mm two-slot models while reducing static pressure by 33%—enhancing AC efficiency without taxing ductwork. Lab-tested performance data (flow rate, noise, and pressure) is available to ensure system compatibility. See our smoke test video for airflow demonstration. \u003cstrong\u003eProfessional installation recommended.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean, Modern Design:\u003c\/strong\u003e With a 24\" x 3½\" nominal size, this linear slot diffuser is engineered with two sharp, 1-inch openings for a minimalist look that complements any commercial or residential space. (\u003cem\u003ePlease see the diagram for precise measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Velocity Airflow Performance:\u003c\/strong\u003e The wider 1-inch slot is a major upgrade from standard 19mm vent covers, enabling a significantly higher volume of air to move through quietly and efficiently for demanding HVAC systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEliminates Ceiling Dust Marks:\u003c\/strong\u003e An integrated gasket creates a perfect seal against the ceiling tile, preventing leaked air from causing unsightly smudges and ensuring all conditioned air is delivered into the room.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged Commercial Construction:\u003c\/strong\u003e Built from heavy-gauge \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e and fortified with robust Tig welds to withstand the rigors of daily use in any environment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Matte Black Finish:\u003c\/strong\u003e Features a sophisticated matte black powder coat that is highly resistant to scratches, corrosion, and daily wear, ensuring it looks pristine for years to come.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless No-Screw Aesthetic:\u003c\/strong\u003e Achieve a flawless, uninterrupted look with a design that hides all mounting hardware on the interior edges for a clean install. (Note: Fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimize Your Air Distribution:\u003c\/strong\u003e For peak HVAC efficiency, pair this air diffuser with an \u003ca rel=\"noopener\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" target=\"_blank\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003ecustom plenum box\u003c\/span\u003e\u003c\/a\u003e (sold separately) to perfectly balance airflow. Check out our video to learn more.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"Full dimensions of a black 24 inch 2-slot linear diffuser with 25mm openings for high airflow in commercial HVAC systems\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-24-inch-2-slot-black-fulldimensions-flomatrix-hvac.png?v=1745448293\"\u003e\u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Request a Quote for Linear Slot Diffusers\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/double-linear-slot-diffuser-high-flow-black-installed-commercial-hvac.jpg?v=1781044844\" alt=\"Black double linear slot diffuser installed in residential HVAC ceiling, providing high airflow and modern architectural air distribution.\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003ch5\u003e\u003cbr\u003e\u003c\/h5\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e137\u003cbr\u003e212\u003cbr\u003e250\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.06\u003cbr\u003e0.15\u003cbr\u003e0.20\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e35\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Contact Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"What Makes Flo-Matrix HVAC the Preferred Choice for Linear Slot Diffusers\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser high flow (two slots) Submittal Sheet High Resolution PDF Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser_high_flow_two-slot_submittal_high_resolution_download.pdf?v=1750376288\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Linear Slot Diffuser high airflow 2-slot submittal\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-2-slot-submittal-flomatrix-hvac.jpg?v=1745448293\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Engineer's Standard for Commercial HVAC Grilles and Diffusers\u003c\/h4\u003e\n\u003cp\u003eIn professional HVAC design, \"commercial grade\" is a promise of performance, backed by data. It provides the detailed technical information—from the composition to certified metrics on NC (noise criteria), flow rates, and pressure drop—that engineers rely on for precise specification and predictable results.\u003c\/p\u003e\n\u003cp\u003eWe uphold this promise by subjecting our products to testing aligned with ASHRAE Standard 70-2006 and ADC1062:GRD-84. Our design philosophy leverages \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e to continuously innovate, creating energy-efficient solutions that meet the highest standards of modern building design.\u003c\/p\u003e\n\u003cp\u003eFor over two decades, since 1997, we have specialized in manufacturing high-performance linear slot diffusers (1-12 slots) for commercial applications. \u003cspan style=\"color: rgb(111, 160, 177);\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Us Form - Flo-Matrix HVAC\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eContact our product specialists\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e at +1-604-437-1527 for expert consultation on your next project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":41744845209763,"sku":"FWASD25-2\/125W\/638L\/005","price":59.9,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-24-inch-2-slot-black-frontview-flomatrix-hvac.png?v=1745448293"},{"product_id":"36-linear-slot-diffuser-2-slots-with-25mm-slot-openings-hvac-vent-cover-matte-black-finish-wasd25-2","title":"36\" Linear Slot Diffuser Vent Cover (2 Slots with 25mm Openings) - Matte Black - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThis 36-inch linear slot diffuser in matte black combines durability and performance with its architectural-grade extruded aluminum construction. Perfect for VAV systems and general air distribution, its dual 25mm slots with 180° adjustable blades boost airflow by 17% over our 19mm two-slot models while reducing static pressure by 33%—enhancing AC efficiency without taxing ductwork. Lab-tested performance data (flow rate, noise, and pressure) is available to ensure system compatibility. See our smoke test video for airflow demonstration. \u003cstrong\u003eProfessional installation recommended.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean, Modern Design:\u003c\/strong\u003e With a 36\" x 3½\" nominal size, this linear slot diffuser is engineered with two sharp, 1-inch openings for a minimalist look that complements any commercial or residential space. (\u003cem\u003ePlease see the diagram for precise measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Velocity Airflow Performance:\u003c\/strong\u003e The wider 1-inch slot is a major upgrade from standard 19mm vent covers, enabling a significantly higher volume of air to move through quietly and efficiently for demanding HVAC systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEliminates Ceiling Dust Marks:\u003c\/strong\u003e An integrated gasket creates a perfect seal against the ceiling tile, preventing leaked air from causing unsightly smudges and ensuring all conditioned air is delivered into the room.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged Commercial Construction:\u003c\/strong\u003e Built from heavy-gauge \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e and fortified with robust Tig welds to withstand the rigors of daily use in any environment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Matte Black Finish:\u003c\/strong\u003e Features a sophisticated matte black powder coat that is highly resistant to scratches, corrosion, and daily wear, ensuring it looks pristine for years to come.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless No-Screw Aesthetic:\u003c\/strong\u003e Achieve a flawless, uninterrupted look with a design that hides all mounting hardware on the interior edges for a clean install. (Note: Fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimize Your Air Distribution:\u003c\/strong\u003e For peak HVAC efficiency, pair this air diffuser with an \u003ca rel=\"noopener\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" target=\"_blank\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003ecustom plenum box\u003c\/span\u003e\u003c\/a\u003e (sold separately) to perfectly balance airflow. Check out our video to learn more.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-36-inch-2-slot-black-fulldimensions-flomatrix-hvac.png?v=1745448727\" alt=\"Full dimensions of a black 36 inch 2-slot linear diffuser with 25mm openings for high airflow in commercial HVAC systems\"\u003e\u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" title=\"Request a Quote for Linear Slot Diffusers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/double-linear-slot-diffuser-high-flow-black-installed-commercial-hvac.jpg?v=1781044844\" alt=\"Black double linear slot diffuser installed in residential HVAC ceiling, providing high airflow and modern architectural air distribution.\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e206\u003cbr\u003e318\u003cbr\u003e375\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.06\u003cbr\u003e0.15\u003cbr\u003e0.20\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e35\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Flo-Matrix HVAC\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"Premium Linear Slot Diffusers: How Flo-Matrix HVAC Stands Above Generic Suppliers\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser high flow (two slots) Submittal Sheet High Resolution PDF Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser_high_flow_two-slot_submittal_high_resolution_download.pdf?v=1750376288\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-2-slot-submittal-flomatrix-hvac.jpg?v=1745448727\" alt=\"Linear Slot Diffuser high airflow 2-slot submittal\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Engineer's Standard for Commercial HVAC Grilles and Diffusers\u003c\/h4\u003e\n\u003cp\u003eIn professional HVAC design, \"commercial grade\" is a promise of performance, backed by data. It provides the detailed technical information—from the composition to certified metrics on NC (noise criteria), flow rates, and pressure drop—that engineers rely on for precise specification and predictable results.\u003c\/p\u003e\n\u003cp\u003eWe uphold this promise by subjecting our products to testing aligned with ASHRAE Standard 70-2006 and ADC1062:GRD-84. Our design philosophy leverages \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e to continuously innovate, creating energy-efficient solutions that meet the highest standards of modern building design.\u003c\/p\u003e\n\u003cp\u003eFor over two decades, since 1997, we have specialized in manufacturing high-performance linear slot diffusers (1-12 slots) for commercial applications. \u003cspan style=\"color: rgb(111, 160, 177);\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Us Form - Flo-Matrix HVAC\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eContact our product specialists\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e at +1-604-437-1527 for expert consultation on your next project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":41744850419875,"sku":"FWASD25-2\/125W\/942L\/005","price":88.46,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-36-inch-2-slot-black-frontview-flomatrix-hvac.jpg?v=1745882814"},{"product_id":"18-linear-slot-diffuser-2-slots-with-19mm-slot-openings-hvac-vent-cover-matte-white-finish-wasd19-2","title":"18\" Linear Slot Diffuser Vent Cover (2 Slots with 19mm Openings) - Matte White - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThis 18-inch linear slot diffuser features a crisp white finish that blends seamlessly into modern interiors. Its heavy-duty extruded aluminum construction stands up to daily use in both commercial buildings and homes. The dual-slot design delivers stronger airflow than standard single-slot models, while the 19mm adjustable blades let you direct air precisely across a full 180-degree range. HVAC professionals and architects appreciate how it balances architectural aesthetics with VAV system performance. Want to see how it distributes air? Our smoke test video demonstrates real-world operation. \u003cstrong\u003eFor optimal results, we recommend having a qualified technician handle installation.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Design \u0026amp; Fit:\u003c\/strong\u003e With a 18\" x 3¼\" nominal size, this linear slot diffuser features two crisp, ¾\" openings for a sharp, modern look that seamlessly integrates into any ceiling. (\u003cem\u003eCheck the size diagram for exact measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrevents Ceiling Smudges \u0026amp; Stains:\u003c\/strong\u003e A built-in gasket creates an airtight seal against the ceiling. This stops air leakage, protects your ceiling from dust marks, and ensures airflow is directed perfectly through the slotted vent covers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty \u0026amp; Built to Last:\u003c\/strong\u003e : Constructed from commercial-grade \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e. It's reinforced with Tig welds to prevent cracking, chipping, or bending, guaranteeing a lifetime of reliable performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrisp, Durable Finish:\u003c\/strong\u003e Finished in a premium matte white, this strong powder coat is specifically chosen for its superior defense against scratches, corrosion, and fading, ensuring long-lasting beauty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSleek, No-Visible-Screw Design:\u003c\/strong\u003e Achieve a clean, minimalist installation with no screws showing on the face of the register. All fastening points are cleverly hidden on the inner sides for a flawless finish. (Please note: fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTailor Your Airflow:\u003c\/strong\u003e For ultimate control, easily pair this unit with a \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecustom plenum box\u003c\/a\u003e\u003c\/span\u003e (sold separately) to fine-tune performance for any HVAC system. See our video guide to learn more about plenum options.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Full dimensions of a white 18 inch 2-slot linear diffuser with 19mm openings for precision airflow in commercial HVAC systems\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-18-inch-2-slot-white-fulldimensions-flomatrix-hvac.jpg?v=1745873228\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" title=\"Request a Quote for Linear Slot Diffusers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Double_Linear_Slot_Diffuser_White_Short_length_Installed_Photo.jpg?v=1780354694\" alt=\"White double linear slot diffuser installed on the wall for modern HVAC air distribution and seamless interior design\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e96\u003cbr\u003e140\u003cbr\u003e187\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.09\u003cbr\u003e0.18\u003cbr\u003e0.31\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e40\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Contact Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/span\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/collections\/linear-slot-diffuser-double-slots-with-25mm-wide-slot-opening\" title=\"Linear Slot Diffuser - 25mm wide openings - 2 Slots Vent Covers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003eNeed more airflow? See the enhanced airflow 2-slots diffuser\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"The Flo-Matrix Difference: Premium Linear Slot Diffusers vs Generic HVAC Vents\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_2-slot_submittal_high_resolution_download.pdf?v=1750374563\" title=\"Linear Slot Diffuser (two slots) Submittal Sheet High Resolution PDF Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Linear Slot Diffuser -2-slot submittal\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-2-slot-submittal-flomatrix-hvac.jpg?v=1745873228\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Key Characteristics of Commercial-Grade Air Distribution Products\u003c\/h4\u003e\n\u003cp\u003eCommercial-grade grilles, registers, and diffusers are defined by one crucial element: complete and accurate technical data. This information empowers architects, engineers, and HVAC contractors to make informed decisions, providing clear details on material grades and comprehensive performance specifications like noise levels (NC), airflow capacity, and pressure drop.\u003c\/p\u003e\n\u003cp\u003eWe ensure our products meet this high bar through rigorous testing in accordance with ASHRAE 70-2006 and ADC1062:GRD-84. Our development process harnesses the power of \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e to innovate and improve, resulting in designs that maximize energy efficiency and airflow control.\u003c\/p\u003e\n\u003cp\u003eWe have manufactured premium linear slot diffusers (1-12 slot options) for the commercial HVAC industry since 1997. For personalized guidance tailored to your project’s needs, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003econtact our product specialists\u003c\/a\u003e\u003c\/span\u003e\u003ca rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003e\u003c\/a\u003e at +1-604-437-1527.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":42124500205731,"sku":"FWASD19-2\/114.5W\/484L\/PCWS02","price":49.06,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-18-inch-2-slot-white-frontview-flomatrix-hvac.png?v=1745873228"},{"product_id":"60-linear-slot-diffuser-2-slots-with-19mm-slot-openings-hvac-vent-cover-matte-white-finish-wasd19-2","title":"60\" Linear Slot Diffuser Vent Cover (2 Slots with 19mm Openings) - Matte White - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThis 60-inch linear slot diffuser features a crisp white finish that blends seamlessly into modern interiors. Its heavy-duty extruded aluminum construction stands up to daily use in both commercial buildings and homes. The dual-slot design delivers stronger airflow than standard single-slot models, while the 19mm adjustable blades let you direct air precisely across a full 180-degree range. HVAC professionals and architects appreciate how it balances architectural aesthetics with VAV system performance. Want to see how it distributes air? Our smoke test video demonstrates real-world operation. \u003cstrong\u003eFor optimal results, we recommend having a qualified technician handle installation.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Design \u0026amp; Fit:\u003c\/strong\u003e With a 60\" x 3¼\" nominal size, this linear slot diffuser features two crisp, ¾\" openings for a sharp, modern look that seamlessly integrates into any ceiling. (\u003cem\u003eCheck the size diagram for exact measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrevents Ceiling Smudges \u0026amp; Stains:\u003c\/strong\u003e A built-in gasket creates an airtight seal against the ceiling. This stops air leakage, protects your ceiling from dust marks, and ensures airflow is directed perfectly through the slotted vent covers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty \u0026amp; Built to Last:\u003c\/strong\u003e : Constructed from commercial-grade \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e. It's reinforced with Tig welds to prevent cracking, chipping, or bending, guaranteeing a lifetime of reliable performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrisp, Durable Finish:\u003c\/strong\u003e Finished in a premium matte white, this strong powder coat is specifically chosen for its superior defense against scratches, corrosion, and fading, ensuring long-lasting beauty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSleek, No-Visible-Screw Design:\u003c\/strong\u003e Achieve a clean, minimalist installation with no screws showing on the face of the register. All fastening points are cleverly hidden on the inner sides for a flawless finish. (Please note: fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTailor Your Airflow:\u003c\/strong\u003e For ultimate control, easily pair this unit with a \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecustom plenum box\u003c\/a\u003e\u003c\/span\u003e (sold separately) to fine-tune performance for any HVAC system. See our video guide to learn more about plenum options.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Request a Quote for Linear Slot Diffusers\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" alt=\"White double linear slot diffuser installed on the wall for modern HVAC air distribution and seamless interior design\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Double_Linear_Slot_Diffuser_White_Short_length_Installed_Photo.jpg?v=1780354694\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e321\u003cbr\u003e468\u003cbr\u003e625\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.09\u003cbr\u003e0.18\u003cbr\u003e0.31\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e40\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Contact Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/span\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/collections\/linear-slot-diffuser-double-slots-with-25mm-wide-slot-opening\" title=\"Linear Slot Diffuser - 25mm wide openings - 2 Slots Vent Covers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003eNeed more airflow? See the enhanced airflow 2-slots diffuser\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/fwasd19-2-vs-fwasd25-2-linear-slot-diffuser-comparison-commercial-hvac_resized.png?v=1780964738\" target=\"_blank\"\u003e\u003cimg alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/fwasd19-2-vs-fwasd25-2-linear-slot-diffuser-comparison-commercial-hvac_resized.png?v=1780964738\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"The Flo-Matrix Difference: Premium Linear Slot Diffusers vs Generic HVAC Vents\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_2-slot_submittal_high_resolution_download.pdf?v=1750374563\" title=\"Linear Slot Diffuser (two slots) Submittal Sheet High Resolution PDF Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg alt=\"Linear Slot Diffuser -2-slot submittal\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-2-slot-submittal-flomatrix-hvac.jpg?v=1745266458\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Key Characteristics of Commercial-Grade Air Distribution Products\u003c\/h4\u003e\n\u003cp\u003eCommercial-grade grilles, registers, and diffusers are defined by one crucial element: complete and accurate technical data. This information empowers architects, engineers, and HVAC contractors to make informed decisions, providing clear details on material grades and comprehensive performance specifications like noise levels (NC), airflow capacity, and pressure drop.\u003c\/p\u003e\n\u003cp\u003eWe ensure our products meet this high bar through rigorous testing in accordance with ASHRAE 70-2006 and ADC1062:GRD-84. Our development process harnesses the power of \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e to innovate and improve, resulting in designs that maximize energy efficiency and airflow control.\u003c\/p\u003e\n\u003cp\u003eWe have manufactured premium linear slot diffusers (1-12 slot options) for the commercial HVAC industry since 1997. For personalized guidance tailored to your project’s needs, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003econtact our product specialists\u003c\/a\u003e\u003c\/span\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Us Form - Flo-Matrix HVAC\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e at +1-604-437-1527.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":42321045815459,"sku":"FWASD19-2\/114.5W\/1552L\/PCWS02","price":149.53,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-60-inch-2-slot-white-frontview-flomatrix-hvac.png?v=1745878242"},{"product_id":"72-linear-slot-diffuser-2-slots-with-25mm-slot-openings-hvac-vent-cover-matte-white-finish-wasd25-2","title":"72\" Linear Slot Diffuser Vent Cover (2 Slots with 25mm Openings) - Matte White - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThe 72-inch linear slot diffuser delivers superior airflow with its sleek white finish and architectural-grade aluminum construction. Featuring dual 25mm slots with 180° adjustable blades, it provides 17% greater airflow than our standard two-slot 19mm models while reducing static pressure by 33%—optimizing HVAC efficiency without straining ductwork. Verified lab results confirm its performance for flow rate, noise levels, and pressure in the performance section. See our smoke test video to observe the precise air distribution in action. \u003cstrong\u003eProfessional installation recommended for optimal results.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean, Modern Design:\u003c\/strong\u003e With a 72\" x 3½\" nominal size, this linear slot diffuser is engineered with two sharp, 1-inch openings for a minimalist look that complements any commercial or residential space. (\u003cem\u003ePlease see the diagram for precise measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Velocity Airflow Performance:\u003c\/strong\u003e The wider 1-inch slot is a major upgrade from standard 19mm vent covers, enabling a significantly higher volume of air to move through quietly and efficiently for demanding HVAC systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEliminates Ceiling Dust Marks:\u003c\/strong\u003e An integrated gasket creates a perfect seal against the ceiling tile, preventing leaked air from causing unsightly smudges and ensuring all conditioned air is delivered into the room.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged Commercial Construction:\u003c\/strong\u003e Built from heavy-gauge \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e and fortified with robust Tig welds to withstand the rigors of daily use in any environment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrong Matte White Surface: \u003c\/strong\u003eFeatures a sophisticated matte white powder coat that is not only elegant but also remarkably resistant to wear, including scratches, corrosion, and fading.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless No-Screw Aesthetic:\u003c\/strong\u003e Achieve a flawless, uninterrupted look with a design that hides all mounting hardware on the interior edges for a clean install. (Note: Fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimize Your Air Distribution:\u003c\/strong\u003e For peak HVAC efficiency, pair this air diffuser with an \u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003ecustom plenum box\u003c\/span\u003e\u003c\/a\u003e (sold separately) to perfectly balance airflow. Check out our video to learn more.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" title=\"Request a Quote for Linear Slot Diffusers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Double_Linear_Slot_Diffuser_White_Medium_high_airflow_Installed_Photo.jpg?v=1780433270\" alt=\"White double linear slot diffuser (high airflow) installed on the wall for modern HVAC air distribution and clean architectural design\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e412\u003cbr\u003e637\u003cbr\u003e750\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.06\u003cbr\u003e0.15\u003cbr\u003e0.20\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e35\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Flo-Matrix HVAC\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"Flo-Matrix HVAC vs Generic Vent Cover Companies: Quality, Performance \u0026amp; Support\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser_high_flow_two-slot_submittal_high_resolution_download.pdf?v=1750376288\" title=\"Linear Slot Diffuser high flow (two slots) Submittal Sheet High Resolution PDF Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg alt=\"Linear Slot Diffuser high airflow 2-slot submittal\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-2-slot-submittal-flomatrix-hvac.jpg?v=1745455123\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Engineer's Standard for Commercial HVAC Grilles and Diffusers\u003c\/h4\u003e\n\u003cp\u003eIn professional HVAC design, \"commercial grade\" is a promise of performance, backed by data. It provides the detailed technical information—from the composition to certified metrics on NC (noise criteria), flow rates, and pressure drop—that engineers rely on for precise specification and predictable results.\u003c\/p\u003e\n\u003cp\u003eWe uphold this promise by subjecting our products to testing aligned with ASHRAE Standard 70-2006 and ADC1062:GRD-84. Our design philosophy leverages \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e to continuously innovate, creating energy-efficient solutions that meet the highest standards of modern building design.\u003c\/p\u003e\n\u003cp\u003eFor over two decades, since 1997, we have specialized in manufacturing high-performance linear slot diffusers (1-12 slots) for commercial applications. \u003cspan style=\"color: rgb(111, 160, 177);\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003eContact our product specialists\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e at +1-604-437-1527 for expert consultation on your next project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":42321067016355,"sku":"FWASD25-2\/125W\/1857L\/PCWS02","price":178.91,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-72-inch-2-slot-white-frontview-flomatrix-hvac.png?v=1745455123"},{"product_id":"10x4-linear-slot-diffuser-matte-black-casa-series-hvac-air-vent-wasd25-2","title":"10x4\" Linear Slot Diffuser - CASA Series Modern Vent Cover - Matte Black - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003eThis 10x4 inch linear slot diffuser in matte black offers the ultimate upgrade for your home's airflow—seamlessly replacing standard vent covers with a sleek, modern look. Unlike flimsy alternatives, our heavy-duty extruded aluminum construction resists cracking during installation, eliminating frustrating breaks. The rich powder-coated finish adds durability while integrated weather stripping prevents ceiling smudges (a game-changer for hard-to-reach ceiling installations!).\u003c\/p\u003e\n\u003cp\u003eThese precision-engineered diffusers feature 25mm slots with 180° adjustable blades, offering two-way airflow control for customized comfort. Perfect for both residential and professional VAV systems, they combine architectural-grade performance with hassle-free installation—designed as direct replacements for old vent covers. \u003cstrong\u003eFor flawless results and optimal airflow, professional installation is recommended.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cbr\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eA Perfect Fit for Your Home:\u003c\/strong\u003e With its standard 10x4\" size, our CASA Series is the ideal, hassle-free retrofit upgrade to replace old, bulky vent covers with a sleek, modern linear slot diffuser. \u003cem\u003ePlease see the diagram for precise measurements.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean \u0026amp; Modern Residential Design:\u003c\/strong\u003e This vent cover features a crisp, minimalist profile with a defined 1-inch slot opening, designed to seamlessly complement any room's aesthetic without demanding costly renovation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior, Quiet Airflow:\u003c\/strong\u003e The engineered 1-inch slot allows a higher volume of air to pass through more efficiently than traditional 19mm AC vent covers, improving your HVAC system's performance without added noise.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtects Your Ceiling from Stains:\u003c\/strong\u003e An integrated foam gasket ensures a tight seal against the ceiling, preventing dusty air leakage that causes ugly black smudges and marks around old registers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurprisingly Durable Construction:\u003c\/strong\u003e Don’t let its sleek look fool you. Built from \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003earchitectural-grade aluminum\u003c\/a\u003e\u003c\/span\u003e with reinforced welds, this vent cover is built to resist bending, cracking, and daily wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScratch-Resistant Matte Black Finish:\u003c\/strong\u003e Finished in a sophisticated matte black powder coat that is exceptionally resistant to chipping, corrosion, and fading, keeping it looking new for years.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless, No-Screw Look:\u003c\/strong\u003e Achieve a flawless, custom-looking installation. All mounting is handled discreetly on the inner edges, leaving the visible face completely clean and unbroken. (Fasteners not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTailor Your Comfort:\u003c\/strong\u003e For ultimate airflow control, easily pair this linear slot diffuser with a \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecustom plenum box\u003c\/a\u003e\u003c\/span\u003e (sold separately) to perfectly match your system's output for any room.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Full dimensions of a black 10x4 inch 2-slot modern vent cover linear diffuser with 25mm openings for high airflow in commercial HVAC systems\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/modern-vent-cover-linear-slot-diffuser-high-flow-10x4-inch-2-slot-black-fulldimensions-flomatrix-hvac_480x480.png?v=1764463720\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Request a Quote for Linear Slot Diffusers\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/black-modern-vent-cover-bathroom-wall-installation-minimalist-hvac-register-flomatrix.jpg?v=1781811427\" alt=\"Luxury black wall vent cover installed in a modern spa-inspired bathroom, combining elegant architectural styling with efficient HVAC airflow performance.\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e56\u003cbr\u003e79\u003cbr\u003e103\u003cbr\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.06\u003cbr\u003e0.12\u003cbr\u003e0.20\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e35\u003cbr\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Contact Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\" title=\"High Resolution of Professional HVAC Diffusers vs Mass Produced Diffusers | Quality Comparison Guide\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch5\u003e\u003cspan\u003eSubmittal\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/CASA_Linear_Slot_Diffusers_-_2_Slots_Submittal_Sheet.pdf?v=1746658237\" title=\"CASA Linear Slot Diffusers - 2 Slots Submittal Sheet High Resolution Download\" rel=\"noopener\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cimg alt=\"Linear slot diffuser high flow 2-slot CASA installation submittal\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-2-slot-CASA-installation-submittal-flomatrix-hvac.jpg?v=1745277568\"\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch5\u003e\u003cbr\u003e\u003c\/h5\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eWhy a Commercial Grade Vent Cover is a Smart Upgrade for Your Home\u003c\/h4\u003e\n\u003cp\u003eThinking about commercial grade vent covers for your house might seem like overkill, but it's actually one of the smartest home improvement upgrades you can make for your HVAC system. While standard AC vent covers are designed to be basic, commercial-grade options are built for superior performance and long-term value, directly benefiting your home comfort.\u003c\/p\u003e\n\u003cp\u003eThe most immediate advantage is their exceptional durability. Crafted from robust materials like architectural-grade aluminum, these linear slot diffusers are engineered to withstand daily life without bending, cracking, or showing wear. This makes them a lasting investment that outperforms standard models year after year.\u003c\/p\u003e\n\u003cp\u003eYou'll also notice a much quieter home environment. Thanks to their precision engineering, these vent covers allow your HVAC system to operate efficiently with significantly reduced noise. They minimize that disruptive whistling and rushing air sound, promoting peaceful and effective airflow in every room.\u003c\/p\u003e\n\u003cp\u003eChoosing a commercial-grade product isn't excessive—it's a practical choice for homeowners who want lasting quality, enhanced indoor air quality, and a more comfortable living space. It’s about investing in better performance and value for your home.\u003c\/p\u003e\n\u003cp\u003eWe've specialized in manufacturing these high-performance solutions since 1997. If you're looking to upgrade your HVAC components, \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Us Form - Flo-Matrix HVAC\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eour team is here to help you\u003c\/a\u003e\u003c\/span\u003e find the perfect fit.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cu\u003eShowcase Video of Product - CASA Series Modern AC Vent Covers\u003c\/u\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe style=\"font-size: 0.875rem;\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/wcXlDlqBZeY?si=4-Z83FrdWgw0k3aS\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":42328969150627,"sku":"FWASD25-2\/125W\/282L\/005","price":36.43,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/modern-vent-cover-linear-slot-diffuser-high-flow-10x4-inch-2-slot-black-frontview-flomatrix-hvac.png?v=1764463735"},{"product_id":"10x4-linear-slot-diffuser-matte-white-casa-series-hvac-air-vent-wasd25-2","title":"10x4\" Linear Slot Diffuser - CASA Series Modern Vent Cover - Matte White - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003eThis 10x4 inch linear slot diffuser in a chic white offers the ultimate upgrade for your home's airflow—seamlessly replacing standard vent covers with a sleek, modern look. Unlike flimsy alternatives, our heavy-duty extruded aluminum construction resists cracking during installation, eliminating frustrating breaks. The rich powder-coated finish adds durability while integrated weather stripping prevents ceiling smudges (a game-changer for hard-to-reach ceiling installations!).\u003c\/p\u003e\n\u003cp\u003eThese precision-engineered diffusers feature 25mm slots with 180° adjustable blades, offering two-way airflow control for customized comfort. Perfect for both residential and professional VAV systems, they combine architectural-grade performance with hassle-free installation—designed as direct replacements for old vent covers. \u003cstrong\u003eFor flawless results and optimal airflow, professional installation is recommended.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cbr\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eA Perfect Fit for Your Home:\u003c\/strong\u003e With its standard 10x4\" size, our CASA Series is the ideal, hassle-free retrofit upgrade to replace old, bulky vent covers with a sleek, modern linear slot diffuser. \u003cem\u003ePlease see the diagram for precise measurements.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean \u0026amp; Modern Residential Design:\u003c\/strong\u003e This vent cover features a crisp, minimalist profile with a defined 1-inch slot opening, designed to seamlessly complement any room's aesthetic without demanding costly renovation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior, Quiet Airflow:\u003c\/strong\u003e The engineered 1-inch slot allows a higher volume of air to pass through more efficiently than traditional 19mm AC vent covers, improving your HVAC system's performance without added noise.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtects Your Ceiling from Stains:\u003c\/strong\u003e An integrated foam gasket ensures a tight seal against the ceiling, preventing dusty air leakage that causes ugly black smudges and marks around old registers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurprisingly Durable Construction:\u003c\/strong\u003e Don’t let its sleek look fool you. Built from \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003earchitectural-grade aluminum\u003c\/a\u003e\u003c\/span\u003e with reinforced welds, this vent cover is built to resist bending, cracking, and daily wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrong White Matte Finish:\u003c\/strong\u003e Renowned for its toughness, this matte white powder coat provides exceptional protection from scratches, resists corrosion, and maintains its color without fading.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless, No-Screw Look:\u003c\/strong\u003e Achieve a flawless, custom-looking installation. All mounting is handled discreetly on the inner edges, leaving the visible face completely clean and unbroken. (Fasteners not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTailor Your Comfort:\u003c\/strong\u003e For ultimate airflow control, easily pair this linear slot diffuser with a \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" rel=\"noopener\" target=\"_blank\"\u003ecustom plenum box\u003c\/a\u003e\u003c\/span\u003e\u003ca rel=\"noopener\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" target=\"_blank\"\u003e\u003c\/a\u003e (sold separately) to perfectly match your system's output for any room.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/modern-vent-cover-linear-slot-diffuser-high-flow-10x4-inch-2-slot-white-fulldimensions-flomatrix-hvac_600x600.png?v=1764463651\" alt=\"Full dimensions of a white 10x4 inch 2-slot modern vent cover linear diffuser with 25mm openings for high airflow in commercial HVAC systems\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" title=\"Request a Quote for Linear Slot Diffusers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_-CASA_White_high_airflow_Installed_Photo.jpg?v=1780433378\" alt=\"Modern CASA white linear slot air diffuser mounted on wall, high-performance HVAC ventilation solution for homes, offices, and commercial spaces.\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e56\u003cbr\u003e79\u003cbr\u003e103\u003cbr\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.06\u003cbr\u003e0.12\u003cbr\u003e0.20\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e35\u003cbr\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Flo-Matrix HVAC\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\" title=\"High Resolution of Professional HVAC Diffusers vs Mass Produced Diffusers | Quality Comparison Guide\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" title=\"CASA Linear Slot Diffusers - 2 Slots Submittal Sheet High Resolution Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/CASA_Linear_Slot_Diffusers_-_2_Slots_Submittal_Sheet.pdf?v=1746658237\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cimg alt=\"Linear slot diffuser high flow 2-slot CASA installation submittal\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-2-slot-CASA-installation-submittal-flomatrix-hvac.jpg?v=1745349831\"\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eWhy a Commercial Grade Vent Cover is a Smart Upgrade for Your Home\u003c\/h4\u003e\n\u003cp\u003eThinking about commercial grade vent covers for your house might seem like overkill, but it's actually one of the smartest home improvement upgrades you can make for your HVAC system. While standard AC vent covers are designed to be basic, commercial-grade options are built for superior performance and long-term value, directly benefiting your home comfort.\u003c\/p\u003e\n\u003cp\u003eThe most immediate advantage is their exceptional durability. Crafted from robust materials like architectural-grade aluminum, these linear slot diffusers are engineered to withstand daily life without bending, cracking, or showing wear. This makes them a lasting investment that outperforms standard models year after year.\u003c\/p\u003e\n\u003cp\u003eYou'll also notice a much quieter home environment. Thanks to their precision engineering, these vent covers allow your HVAC system to operate efficiently with significantly reduced noise. They minimize that disruptive whistling and rushing air sound, promoting peaceful and effective airflow in every room.\u003c\/p\u003e\n\u003cp\u003eChoosing a commercial-grade product isn't excessive—it's a practical choice for homeowners who want lasting quality, enhanced indoor air quality, and a more comfortable living space. It’s about investing in better performance and value for your home.\u003c\/p\u003e\n\u003cp\u003eWe've specialized in manufacturing these high-performance solutions since 1997. If you're looking to upgrade your HVAC components, \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003eour team is here to help you\u003c\/a\u003e\u003c\/span\u003e find the perfect fit.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cu\u003eShowcase Video of Product - CASA Series Modern AC Vent Covers\u003c\/u\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/wcXlDlqBZeY?si=4-Z83FrdWgw0k3aS\" height=\"315\" width=\"560\" style=\"font-size: 0.875rem;\"\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":42331140554915,"sku":"FWASD25-2\/125W\/282L\/PCWS02","price":36.43,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/modern-vent-cover-linear-slot-diffuser-high-flow-10x4-inch-2-slot-white-frontview-flomatrix-hvac.png?v=1764463667"},{"product_id":"12x4-linear-slot-diffuser-matte-black-casa-series-hvac-air-vent-wasd25-2","title":"12x4\" Linear Slot Diffuser - CASA Series Modern Vent Cover - Matte Black - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003eThis 12x4 inch linear slot diffuser in matte black offers the ultimate upgrade for your home's airflow—seamlessly replacing standard vent covers with a sleek, modern look. Unlike flimsy alternatives, our heavy-duty extruded aluminum construction resists cracking during installation, eliminating frustrating breaks. The rich powder-coated finish adds durability while integrated weather stripping prevents ceiling smudges (a game-changer for hard-to-reach ceiling installations!).\u003c\/p\u003e\n\u003cp\u003eThese precision-engineered diffusers feature 25mm slots with 180° adjustable blades, offering two-way airflow control for customized comfort. Perfect for both residential and professional VAV systems, they combine architectural-grade performance with hassle-free installation—designed as direct replacements for old vent covers. \u003cstrong\u003eFor flawless results and optimal airflow, professional installation is recommended.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cbr\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eA Perfect Fit for Your Home:\u003c\/strong\u003e With its standard 12x4\" size, our CASA Series is the ideal, hassle-free retrofit upgrade to replace old, bulky vent covers with a sleek, modern linear slot diffuser. \u003cem\u003ePlease see the diagram for precise measurements.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean \u0026amp; Modern Residential Design:\u003c\/strong\u003e This vent cover features a crisp, minimalist profile with a defined 1-inch slot opening, designed to seamlessly complement any room's aesthetic without demanding costly renovation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior, Quiet Airflow:\u003c\/strong\u003e The engineered 1-inch slot allows a higher volume of air to pass through more efficiently than traditional 19mm AC vent covers, improving your HVAC system's performance without added noise.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtects Your Ceiling from Stains:\u003c\/strong\u003e An integrated foam gasket ensures a tight seal against the ceiling, preventing dusty air leakage that causes ugly black smudges and marks around old registers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurprisingly Durable Construction:\u003c\/strong\u003e Don’t let its sleek look fool you. Built from \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003earchitectural-grade aluminum\u003c\/a\u003e\u003c\/span\u003e with reinforced welds, this vent cover is built to resist bending, cracking, and daily wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScratch-Resistant Matte Black Finish:\u003c\/strong\u003e Finished in a sophisticated matte black powder coat that is exceptionally resistant to chipping, corrosion, and fading, keeping it looking new for years.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless, No-Screw Look:\u003c\/strong\u003e Achieve a flawless, custom-looking installation. All mounting is handled discreetly on the inner edges, leaving the visible face completely clean and unbroken. (Fasteners not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTailor Your Comfort:\u003c\/strong\u003e For ultimate airflow control, easily pair this linear slot diffuser with a \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecustom plenum box\u003c\/a\u003e\u003c\/span\u003e (sold separately) to perfectly match your system's output for any room.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/modern-vent-cover-linear-slot-diffuser-high-flow-12x4-inch-2-slot-black-fulldimensions-flomatrix-hvac_480x480.png?v=1764464029\" alt=\"Full dimensions of a black 12x4 inch 2-slot modern AC vent cover linear diffuser with 25mm openings for high airflow in commercial HVAC systems\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: start;\"\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" title=\"Request a Quote for Linear Slot Diffusers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/div\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/black-modern-vent-cover-bathroom-wall-installation-minimalist-hvac-register-flomatrix.jpg?v=1781811427\" alt=\"Luxury black wall vent cover installed in a modern spa-inspired bathroom, combining elegant architectural styling with efficient HVAC airflow performance.\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e64\u003cbr\u003e91\u003cbr\u003e117\u003cbr\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.06\u003cbr\u003e0.12\u003cbr\u003e0.20\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e35\u003cbr\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Flo-Matrix HVAC\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\" title=\"High Resolution of Professional HVAC Diffusers vs Mass Produced Diffusers | Quality Comparison Guide\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/CASA_Linear_Slot_Diffusers_-_2_Slots_Submittal_Sheet.pdf?v=1746658237\" title=\"CASA Linear Slot Diffusers - 2 Slots Submittal Sheet High Resolution Download\" rel=\"noopener\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-2-slot-CASA-installation-submittal-flomatrix-hvac.jpg?v=1745351694\" alt=\"Linear slot diffuser high flow 2-slot CASA installation submittal\"\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eWhy a Commercial Grade Vent Cover is a Smart Upgrade for Your Home\u003c\/h4\u003e\n\u003cp\u003eThinking about commercial grade vent covers for your house might seem like overkill, but it's actually one of the smartest home improvement upgrades you can make for your HVAC system. While standard AC vent covers are designed to be basic, commercial-grade options are built for superior performance and long-term value, directly benefiting your home comfort.\u003c\/p\u003e\n\u003cp\u003eThe most immediate advantage is their exceptional durability. Crafted from robust materials like architectural-grade aluminum, these linear slot diffusers are engineered to withstand daily life without bending, cracking, or showing wear. This makes them a lasting investment that outperforms standard models year after year.\u003c\/p\u003e\n\u003cp\u003eYou'll also notice a much quieter home environment. Thanks to their precision engineering, these vent covers allow your HVAC system to operate efficiently with significantly reduced noise. They minimize that disruptive whistling and rushing air sound, promoting peaceful and effective airflow in every room.\u003c\/p\u003e\n\u003cp\u003eChoosing a commercial-grade product isn't excessive—it's a practical choice for homeowners who want lasting quality, enhanced indoor air quality, and a more comfortable living space. It’s about investing in better performance and value for your home.\u003c\/p\u003e\n\u003cp\u003eWe've specialized in manufacturing these high-performance solutions since 1997. If you're looking to upgrade your HVAC components, \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003eour team is here to help you\u003c\/a\u003e\u003c\/span\u003e find the perfect fit.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cu\u003eShowcase Video of Product - CASA Series Modern AC Vent Covers\u003c\/u\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/wcXlDlqBZeY?si=4-Z83FrdWgw0k3aS\" height=\"315\" width=\"560\" style=\"font-size: 0.875rem;\"\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":42331194163363,"sku":"FWASD25-2\/125W\/333L\/005","price":41.7,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/modern-vent-cover-linear-slot-diffuser-high-flow-12x4-inch-2-slot-black-frontview-flomatrix-hvac.png?v=1764464044"},{"product_id":"12x4-linear-slot-diffuser-matte-white-casa-series-hvac-air-vent-wasd25-2","title":"12x4\" Linear Slot Diffuser - CASA Series Modern Vent Cover - Matte White - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003eThis 12x4 inch linear slot diffuser in a chic white offers the ultimate upgrade for your home's airflow—seamlessly replacing standard vent covers with a sleek, modern look. Unlike flimsy alternatives, our heavy-duty extruded aluminum construction resists cracking during installation, eliminating frustrating breaks. The rich powder-coated finish adds durability while integrated weather stripping prevents ceiling smudges (a game-changer for hard-to-reach ceiling installations!).\u003c\/p\u003e\n\u003cp\u003eThese precision-engineered diffusers feature 25mm slots with 180° adjustable blades, offering two-way airflow control for customized comfort. Perfect for both residential and professional VAV systems, they combine architectural-grade performance with hassle-free installation—designed as direct replacements for old vent covers. For flawless results and optimal airflow, professional installation is recommended.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eA Perfect Fit for Your Home:\u003c\/strong\u003e With its standard 12x4\" size, our CASA Series is the ideal, hassle-free retrofit upgrade to replace old, bulky vent covers with a sleek, modern linear slot diffuser. \u003cem\u003ePlease see the diagram for precise measurements.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean \u0026amp; Modern Residential Design:\u003c\/strong\u003e This vent cover features a crisp, minimalist profile with a defined 1-inch slot opening, designed to seamlessly complement any room's aesthetic without demanding costly renovation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior, Quiet Airflow:\u003c\/strong\u003e The engineered 1-inch slot allows a higher volume of air to pass through more efficiently than traditional 19mm AC vent covers, improving your HVAC system's performance without added noise.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtects Your Ceiling from Stains:\u003c\/strong\u003e An integrated foam gasket ensures a tight seal against the ceiling, preventing dusty air leakage that causes ugly black smudges and marks around old registers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurprisingly Durable Construction:\u003c\/strong\u003e Don’t let its sleek look fool you. Built from \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003earchitectural-grade aluminum\u003c\/a\u003e\u003c\/span\u003e with reinforced welds, this vent cover is built to resist bending, cracking, and daily wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrong White Matte Finish:\u003c\/strong\u003e Renowned for its toughness, this matte white powder coat provides exceptional protection from scratches, resists corrosion, and maintains its color without fading.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless, No-Screw Look:\u003c\/strong\u003e Achieve a flawless, custom-looking installation. All mounting is handled discreetly on the inner edges, leaving the visible face completely clean and unbroken. (Fasteners not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTailor Your Comfort:\u003c\/strong\u003e For ultimate airflow control, easily pair this linear slot diffuser with a \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" rel=\"noopener\" target=\"_blank\"\u003ecustom plenum box\u003c\/a\u003e\u003c\/span\u003e (sold separately) to perfectly match your system's output for any room.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/modern-vent-cover-linear-slot-diffuser-high-flow-12x4-inch-2-slot-white-fulldimensions-flomatrix-hvac_480x480.png?v=1764463963\" alt=\"Full dimensions of a white 12x4 inch 2-slot modern AC vent cover linear diffuser with 25mm openings for high airflow in commercial HVAC systems\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" title=\"Request a Quote for Linear Slot Diffusers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Modern CASA white linear slot air diffuser mounted on wall, high-performance HVAC ventilation solution for homes, offices, and commercial spaces.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_-CASA_White_high_airflow_Installed_Photo.jpg?v=1780433378\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e64\u003cbr\u003e91\u003cbr\u003e117\u003cbr\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.06\u003cbr\u003e0.12\u003cbr\u003e0.20\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e35\u003cbr\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Flo-Matrix HVAC\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\" title=\"High Resolution of Professional HVAC Diffusers vs Mass Produced Diffusers | Quality Comparison Guide\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" title=\"CASA Linear Slot Diffusers - 2 Slots Submittal Sheet High Resolution Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/CASA_Linear_Slot_Diffusers_-_2_Slots_Submittal_Sheet.pdf?v=1746658237\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cimg alt=\"Linear slot diffuser high flow 2-slot CASA installation submittal\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-2-slot-CASA-installation-submittal-flomatrix-hvac.jpg?v=1745352038\"\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eWhy a Commercial Grade Vent Cover is a Smart Upgrade for Your Home\u003c\/h4\u003e\n\u003cp\u003eThinking about commercial grade vent covers for your house might seem like overkill, but it's actually one of the smartest home improvement upgrades you can make for your HVAC system. While standard AC vent covers are designed to be basic, commercial-grade options are built for superior performance and long-term value, directly benefiting your home comfort.\u003c\/p\u003e\n\u003cp\u003eThe most immediate advantage is their exceptional durability. Crafted from robust materials like architectural-grade aluminum, these linear slot diffusers are engineered to withstand daily life without bending, cracking, or showing wear. This makes them a lasting investment that outperforms standard models year after year.\u003c\/p\u003e\n\u003cp\u003eYou'll also notice a much quieter home environment. Thanks to their precision engineering, these vent covers allow your HVAC system to operate efficiently with significantly reduced noise. They minimize that disruptive whistling and rushing air sound, promoting peaceful and effective airflow in every room.\u003c\/p\u003e\n\u003cp\u003eChoosing a commercial-grade product isn't excessive—it's a practical choice for homeowners who want lasting quality, enhanced indoor air quality, and a more comfortable living space. It’s about investing in better performance and value for your home.\u003c\/p\u003e\n\u003cp\u003eWe've specialized in manufacturing these high-performance solutions since 1997. If you're looking to upgrade your HVAC components, \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003eour team is here to help you\u003c\/a\u003e\u003c\/span\u003e find the perfect fit.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cu\u003eShowcase Video of Product - CASA Series Modern AC Vent Covers\u003c\/u\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe style=\"font-size: 0.875rem;\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/wcXlDlqBZeY?si=4-Z83FrdWgw0k3aS\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":42331207696547,"sku":"FWASD25-2\/125W\/333L\/PCWS02","price":41.7,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/modern-vent-cover-linear-slot-diffuser-high-flow-12x4-inch-2-slot-white-frontview-flomatrix-hvac.png?v=1764463979"},{"product_id":"8x4-linear-slot-diffuser-matte-white-casa-series-hvac-air-vent-cover-wasd25-2","title":"8x4\" Linear Slot Diffuser - CASA Series Modern Vent Cover - Matte White - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003eThis 8x4 inch linear slot diffuser in a chic white offers the ultimate upgrade for your home's airflow—seamlessly replacing standard vent covers with a sleek, modern look. Unlike flimsy alternatives, our heavy-duty extruded aluminum construction resists cracking during installation, eliminating frustrating breaks. The rich powder-coated finish adds durability while integrated weather stripping prevents ceiling smudges (a game-changer for hard-to-reach ceiling installations!).\u003c\/p\u003e\n\u003cp\u003eThese precision-engineered diffusers feature 25mm slots with 180° adjustable blades, offering two-way airflow control for customized comfort. Perfect for both residential and professional VAV systems, they combine architectural-grade performance with hassle-free installation—designed as direct replacements for old vent covers. \u003cstrong\u003eFor flawless results and optimal airflow, professional installation is recommended.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eA Perfect Fit for Your Home:\u003c\/strong\u003e With its standard 8x4\" size, our CASA Series is the ideal, hassle-free retrofit upgrade to replace old, bulky vent covers with a sleek, modern linear slot diffuser. \u003cem\u003ePlease see the diagram for precise measurements.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean \u0026amp; Modern Residential Design:\u003c\/strong\u003e This vent cover features a crisp, minimalist profile with a defined 1-inch slot opening, designed to seamlessly complement any room's aesthetic without demanding costly renovation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior, Quiet Airflow:\u003c\/strong\u003e The engineered 1-inch slot allows a higher volume of air to pass through more efficiently than traditional 19mm AC vent covers, improving your HVAC system's performance without added noise.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtects Your Ceiling from Stains:\u003c\/strong\u003e An integrated foam gasket ensures a tight seal against the ceiling, preventing dusty air leakage that causes ugly black smudges and marks around old registers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurprisingly Durable Construction:\u003c\/strong\u003e Don’t let its sleek look fool you. Built from \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003earchitectural-grade aluminum\u003c\/a\u003e\u003c\/span\u003e with reinforced welds, this vent cover is built to resist bending, cracking, and daily wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrong White Matte Finish:\u003c\/strong\u003e Renowned for its toughness, this matte white powder coat provides exceptional protection from scratches, resists corrosion, and maintains its color without fading.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless, No-Screw Look:\u003c\/strong\u003e Achieve a flawless, custom-looking installation. All mounting is handled discreetly on the inner edges, leaving the visible face completely clean and unbroken. (Fasteners not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTailor Your Comfort:\u003c\/strong\u003e For ultimate airflow control, easily pair this linear slot diffuser with a \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" rel=\"noopener\" target=\"_blank\"\u003ecustom plenum box\u003c\/a\u003e\u003c\/span\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e (sold separately) to perfectly match your system's output for any room.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/modern-vent-cover-linear-slot-diffuser-high-flow-8x4-inch-2-slot-white-fulldimensions-flomatrix-hvac_480x480.png?v=1764463072\" alt=\"Full dimensions of a white 8x4 inch 2-slot modern vent cover linear diffuser with 25mm openings for high airflow in commercial HVAC systems\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" title=\"Request a Quote for Linear Slot Diffusers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Modern CASA white linear slot air diffuser mounted on wall, high-performance HVAC ventilation solution for homes, offices, and commercial spaces.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_-CASA_White_high_airflow_Installed_Photo.jpg?v=1780433378\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e47\u003cbr\u003e67\u003cbr\u003e87\u003cbr\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.06\u003cbr\u003e0.12\u003cbr\u003e0.20\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e35\u003cbr\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Flo-Matrix HVAC\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\" title=\"High Resolution of Professional HVAC Diffusers vs Mass Produced Diffusers | Quality Comparison Guide\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" title=\"CASA Linear Slot Diffusers - 2 Slots Submittal Sheet High Resolution Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/CASA_Linear_Slot_Diffusers_-_2_Slots_Submittal_Sheet.pdf?v=1746658237\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cimg alt=\"Linear slot diffuser high flow 2-slot CASA installation submittal\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-2-slot-CASA-installation-submittal-flomatrix-hvac.jpg?v=1745277568\"\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch5\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/h5\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eWhy a Commercial Grade Vent Cover is a Smart Upgrade for Your Home\u003c\/h4\u003e\n\u003cp\u003eThinking about commercial grade vent covers for your house might seem like overkill, but it's actually one of the smartest home improvement upgrades you can make for your HVAC system. While standard AC vent covers are designed to be basic, commercial-grade options are built for superior performance and long-term value, directly benefiting your home comfort.\u003c\/p\u003e\n\u003cp\u003eThe most immediate advantage is their exceptional durability. Crafted from robust materials like architectural-grade aluminum, these linear slot diffusers are engineered to withstand daily life without bending, cracking, or showing wear. This makes them a lasting investment that outperforms standard models year after year.\u003c\/p\u003e\n\u003cp\u003eYou'll also notice a much quieter home environment. Thanks to their precision engineering, these vent covers allow your HVAC system to operate efficiently with significantly reduced noise. They minimize that disruptive whistling and rushing air sound, promoting peaceful and effective airflow in every room.\u003c\/p\u003e\n\u003cp\u003eChoosing a commercial-grade product isn't excessive—it's a practical choice for homeowners who want lasting quality, enhanced indoor air quality, and a more comfortable living space. It’s about investing in better performance and value for your home.\u003c\/p\u003e\n\u003cp\u003eWe've specialized in manufacturing these high-performance solutions since 1997. If you're looking to upgrade your HVAC components, \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003eour team is here to help you\u003c\/a\u003e\u003c\/span\u003e find the perfect fit.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cu\u003eShowcase Video of Product - CASA Series Modern AC Vent Covers\u003c\/u\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/wcXlDlqBZeY?si=4-Z83FrdWgw0k3aS\" height=\"315\" width=\"560\" style=\"font-size: 0.875rem;\"\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":42331212087459,"sku":"FWASD25-2\/125W\/231L\/PCWS02","price":34.93,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/modern-vent-cover-linear-slot-diffuser-high-flow-8x4-inch-2-slot-white-frontview-flomatrix-hvac.png?v=1764463090"},{"product_id":"18-linear-slot-diffuser-2-slots-with-25mm-slot-openings-hvac-vent-cover-matte-white-finish-wasd25-2","title":"18\" Linear Slot Diffuser Vent Cover (2 Slots with 25mm Openings) - Matte White - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThe 18-inch linear slot diffuser delivers superior airflow with its sleek white finish and architectural-grade aluminum construction. Featuring dual 25mm slots with 180° adjustable blades, it provides 17% greater airflow than our standard two-slot 19mm models while reducing static pressure by 33%—optimizing HVAC efficiency without straining ductwork. Verified lab results confirm its performance for flow rate, noise levels, and pressure in the performance section. See our smoke test video to observe the precise air distribution in action. \u003cstrong\u003eProfessional installation recommended for optimal results.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean, Modern Design:\u003c\/strong\u003e With a 18\" x 3½\" nominal size, this linear slot diffuser is engineered with two sharp, 1-inch openings for a minimalist look that complements any commercial or residential space. (\u003cem\u003ePlease see the diagram for precise measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Velocity Airflow Performance:\u003c\/strong\u003e The wider 1-inch slot is a major upgrade from standard 19mm vent covers, enabling a significantly higher volume of air to move through quietly and efficiently for demanding HVAC systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEliminates Ceiling Dust Marks:\u003c\/strong\u003e An integrated gasket creates a perfect seal against the ceiling tile, preventing leaked air from causing unsightly smudges and ensuring all conditioned air is delivered into the room.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged Commercial Construction:\u003c\/strong\u003e Built from heavy-gauge \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e and fortified with robust Tig welds to withstand the rigors of daily use in any environment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrong Matte White Surface: \u003c\/strong\u003eFeatures a sophisticated matte white powder coat that is not only elegant but also remarkably resistant to wear, including scratches, corrosion, and fading.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless No-Screw Aesthetic:\u003c\/strong\u003e Achieve a flawless, uninterrupted look with a design that hides all mounting hardware on the interior edges for a clean install. (Note: Fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimize Your Air Distribution:\u003c\/strong\u003e For peak HVAC efficiency, pair this air diffuser with an \u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003ecustom plenum box\u003c\/span\u003e\u003c\/a\u003e (sold separately) to perfectly balance airflow. Check out our video to learn more.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-18-inch-2-slot-white-fulldimensions-flomatrix-hvac.png?v=1745880954\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" title=\"Request a Quote for Linear Slot Diffusers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" alt=\"White double linear slot diffuser (high airflow) installed on the wall for modern HVAC air distribution and clean architectural design\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Double_Linear_Slot_Diffuser_White_Medium_high_airflow_Installed_Photo.jpg?v=1780433270\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e103\u003cbr\u003e159\u003cbr\u003e187\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.06\u003cbr\u003e0.15\u003cbr\u003e0.20\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e35\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Flo-Matrix HVAC\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"What Makes Flo-Matrix HVAC the Preferred Choice for Linear Slot Diffusers\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser_high_flow_two-slot_submittal_high_resolution_download.pdf?v=1750376288\" title=\"Linear Slot Diffuser high flow (two slots) Submittal Sheet High Resolution PDF Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-2-slot-submittal-flomatrix-hvac.jpg?v=1745880954\" alt=\"Linear Slot Diffuser high airflow 2-slot submittal\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Engineer's Standard for Commercial HVAC Grilles and Diffusers\u003c\/h4\u003e\n\u003cp\u003eIn professional HVAC design, \"commercial grade\" is a promise of performance, backed by data. It provides the detailed technical information—from the composition to certified metrics on NC (noise criteria), flow rates, and pressure drop—that engineers rely on for precise specification and predictable results.\u003c\/p\u003e\n\u003cp\u003eWe uphold this promise by subjecting our products to testing aligned with ASHRAE Standard 70-2006 and ADC1062:GRD-84. Our design philosophy leverages \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e to continuously innovate, creating energy-efficient solutions that meet the highest standards of modern building design.\u003c\/p\u003e\n\u003cp\u003eFor over two decades, since 1997, we have specialized in manufacturing high-performance linear slot diffusers (1-12 slots) for commercial applications. \u003cspan style=\"color: rgb(111, 160, 177);\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003eContact our product specialists\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e at +1-604-437-1527 for expert consultation on your next project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":42362307444899,"sku":"FWASD25-2\/125W\/484L\/PCWS02","price":49.06,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-18-inch-2-slot-white-frontview-flomatrix-hvac.png?v=1745880954"},{"product_id":"20-linear-slot-diffuser-hvac-air-vent-cover-2-slots-with-25mm-slot-openings-matte-black-finish-wasd25-2","title":"20\" Linear Slot Diffuser Vent Cover (2 Slots with 25mm Openings) - Matte Black - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThis 20-inch linear slot diffuser in matte black combines durability and performance with its architectural-grade extruded aluminum construction. Perfect for VAV systems and general air distribution, its dual 25mm slots with 180° adjustable blades boost airflow by 17% over our 19mm two-slot models while reducing static pressure by 33%—enhancing AC efficiency without taxing ductwork. Lab-tested performance data (flow rate, noise, and pressure) is available to ensure system compatibility. See our smoke test video for airflow demonstration. \u003cstrong\u003eProfessional installation recommended.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean, Modern Design:\u003c\/strong\u003e With a 20\" x 3½\" nominal size, this linear slot diffuser is engineered with two sharp, 1-inch openings for a minimalist look that complements any commercial or residential space. (\u003cem\u003ePlease see the diagram for precise measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Velocity Airflow Performance:\u003c\/strong\u003e The wider 1-inch slot is a major upgrade from standard 19mm vent covers, enabling a significantly higher volume of air to move through quietly and efficiently for demanding HVAC systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEliminates Ceiling Dust Marks:\u003c\/strong\u003e An integrated gasket creates a perfect seal against the ceiling tile, preventing leaked air from causing unsightly smudges and ensuring all conditioned air is delivered into the room.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged Commercial Construction:\u003c\/strong\u003e Built from heavy-gauge \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e and fortified with robust Tig welds to withstand the rigors of daily use in any environment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Matte Black Finish:\u003c\/strong\u003e Features a sophisticated matte black powder coat that is highly resistant to scratches, corrosion, and daily wear, ensuring it looks pristine for years to come.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless No-Screw Aesthetic:\u003c\/strong\u003e Achieve a flawless, uninterrupted look with a design that hides all mounting hardware on the interior edges for a clean install. (Note: Fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimize Your Air Distribution:\u003c\/strong\u003e For peak HVAC efficiency, pair this air diffuser with an \u003ca rel=\"noopener\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" target=\"_blank\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003ecustom plenum box\u003c\/span\u003e\u003c\/a\u003e (sold separately) to perfectly balance airflow. Check out our video to learn more.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"Full dimensions of a black 20 inch 2-slot linear diffuser with 25mm openings for high airflow in commercial HVAC systems\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-20-inch-2-slot-black-fulldimensions-flomatrix-hvac.png?v=1745447526\"\u003e\u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Request a Quote for Linear Slot Diffusers\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/double-linear-slot-diffuser-high-flow-black-installed-commercial-hvac.jpg?v=1781044844\" alt=\"Black double linear slot diffuser installed in residential HVAC ceiling, providing high airflow and modern architectural air distribution.\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e114\u003cbr\u003e177\u003cbr\u003e208\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.06\u003cbr\u003e0.15\u003cbr\u003e0.20\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e35\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable style=\"height: 58.7812px;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 58.7812px;\"\u003e\n\u003ctd style=\"height: 58.7812px;\"\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Contact Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"Premium Linear Slot Diffusers: How Flo-Matrix HVAC Stands Above Generic Suppliers\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser high flow (two slots) Submittal Sheet High Resolution PDF Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser_high_flow_two-slot_submittal_high_resolution_download.pdf?v=1750376288\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Linear Slot Diffuser high airflow 2-slot submittal\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-2-slot-submittal-flomatrix-hvac.jpg?v=1745447526\"\u003e\u003c\/p\u003e\n\u003ch5\u003e\u003cbr\u003e\u003c\/h5\u003e\n\u003ch5\u003e\u003cbr\u003e\u003c\/h5\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Engineer's Standard for Commercial HVAC Grilles and Diffusers\u003c\/h4\u003e\n\u003cp\u003eIn professional HVAC design, \"commercial grade\" is a promise of performance, backed by data. It provides the detailed technical information—from the composition to certified metrics on NC (noise criteria), flow rates, and pressure drop—that engineers rely on for precise specification and predictable results.\u003c\/p\u003e\n\u003cp\u003eWe uphold this promise by subjecting our products to testing aligned with ASHRAE Standard 70-2006 and ADC1062:GRD-84. Our design philosophy leverages \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e to continuously innovate, creating energy-efficient solutions that meet the highest standards of modern building design.\u003c\/p\u003e\n\u003cp\u003eFor over two decades, since 1997, we have specialized in manufacturing high-performance linear slot diffusers (1-12 slots) for commercial applications. \u003cspan style=\"color: rgb(111, 160, 177);\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Us Form - Flo-Matrix HVAC\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eContact our product specialists\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e at +1-604-437-1527 for expert consultation on your next project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":42518618669219,"sku":"FWASD25-2\/125W\/536L\/005","price":52.96,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-20-inch-2-slot-black-frontview-flomatrix-hvac.png?v=1745447526"},{"product_id":"48-linear-slot-diffuser-hvac-air-vent-cover-2-slots-with-25mm-slot-openings-matte-black-finish-wasd25-2","title":"48\" Linear Slot Diffuser Vent Cover (2 Slots with 25mm Openings) - Matte Black - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThis 48-inch linear slot diffuser in matte black combines durability and performance with its architectural-grade extruded aluminum construction. Perfect for VAV systems and general air distribution, its dual 25mm slots with 180° adjustable blades boost airflow by 17% over our 19mm two-slot models while reducing static pressure by 33%—enhancing AC efficiency without taxing ductwork. Lab-tested performance data (flow rate, noise, and pressure) is available to ensure system compatibility. See our smoke test video for airflow demonstration. \u003cstrong\u003eProfessional installation recommended.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean, Modern Design:\u003c\/strong\u003e With a 48\" x 3½\" nominal size, this linear slot diffuser is engineered with two sharp, 1-inch openings for a minimalist look that complements any commercial or residential space. (\u003cem\u003ePlease see the diagram for precise measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Velocity Airflow Performance:\u003c\/strong\u003e The wider 1-inch slot is a major upgrade from standard 19mm vent covers, enabling a significantly higher volume of air to move through quietly and efficiently for demanding HVAC systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEliminates Ceiling Dust Marks:\u003c\/strong\u003e An integrated gasket creates a perfect seal against the ceiling tile, preventing leaked air from causing unsightly smudges and ensuring all conditioned air is delivered into the room.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged Commercial Construction:\u003c\/strong\u003e Built from heavy-gauge \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e and fortified with robust Tig welds to withstand the rigors of daily use in any environment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Matte Black Finish:\u003c\/strong\u003e Features a sophisticated matte black powder coat that is highly resistant to scratches, corrosion, and daily wear, ensuring it looks pristine for years to come.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless No-Screw Aesthetic:\u003c\/strong\u003e Achieve a flawless, uninterrupted look with a design that hides all mounting hardware on the interior edges for a clean install. (Note: Fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimize Your Air Distribution:\u003c\/strong\u003e For peak HVAC efficiency, pair this air diffuser with an \u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003ecustom plenum box\u003c\/span\u003e\u003c\/a\u003e (sold separately) to perfectly balance airflow. Check out our video to learn more.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-48-inch-2-slot-black-fulldimensions-flomatrix-hvac.png?v=1745449090\" alt=\"Full dimensions of a black 48 inch 2-slot linear diffuser with 25mm openings for high airflow in commercial HVAC systems\"\u003e\u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" title=\"Request a Quote for Linear Slot Diffusers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/double-linear-slot-diffuser-high-flow-black-installed-commercial-hvac.jpg?v=1781044844\" alt=\"Black double linear slot diffuser installed in residential HVAC ceiling, providing high airflow and modern architectural air distribution.\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003ch5\u003e\u003cbr\u003e\u003c\/h5\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e275\u003cbr\u003e425\u003cbr\u003e500\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.06\u003cbr\u003e0.15\u003cbr\u003e0.20\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e35\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\" style=\"height: 58.7812px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 58.7812px;\"\u003e\n\u003ctd style=\"height: 58.7812px;\"\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Flo-Matrix HVAC\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"Premium Linear Slot Diffusers: How Flo-Matrix HVAC Stands Above Generic Suppliers\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser_high_flow_two-slot_submittal_high_resolution_download.pdf?v=1750376288\" title=\"Linear Slot Diffuser high flow (two slots) Submittal Sheet High Resolution PDF Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-2-slot-submittal-flomatrix-hvac.jpg?v=1745449090\" alt=\"Linear Slot Diffuser high airflow 2-slot submittal\"\u003e\u003c\/p\u003e\n\u003ch5\u003e\u003cbr\u003e\u003c\/h5\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Engineer's Standard for Commercial HVAC Grilles and Diffusers\u003c\/h4\u003e\n\u003cp\u003eIn professional HVAC design, \"commercial grade\" is a promise of performance, backed by data. It provides the detailed technical information—from the composition to certified metrics on NC (noise criteria), flow rates, and pressure drop—that engineers rely on for precise specification and predictable results.\u003c\/p\u003e\n\u003cp\u003eWe uphold this promise by subjecting our products to testing aligned with ASHRAE Standard 70-2006 and ADC1062:GRD-84. Our design philosophy leverages \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e to continuously innovate, creating energy-efficient solutions that meet the highest standards of modern building design.\u003c\/p\u003e\n\u003cp\u003eFor over two decades, since 1997, we have specialized in manufacturing high-performance linear slot diffusers (1-12 slots) for commercial applications. \u003cspan style=\"color: rgb(111, 160, 177);\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003eContact our product specialists\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e at +1-604-437-1527 for expert consultation on your next project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":42518631022755,"sku":"FWASD25-2\/125W\/1247L\/005","price":117.06,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-48-inch-2-slot-black-frontview-flomatrix-hvac.jpg?v=1745449090"},{"product_id":"18-linear-slot-diffuser-hvac-air-vent-cover-2-slots-with-25mm-slot-openings-matte-black-finish-wasd25-2","title":"18\" Linear Slot Diffuser Vent Cover (2 Slots with 25mm Openings) - Matte Black - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThis 18-inch linear slot diffuser in matte black combines durability and performance with its architectural-grade extruded aluminum construction. Perfect for VAV systems and general air distribution, its dual 25mm slots with 180° adjustable blades boost airflow by 17% over our 19mm two-slot models while reducing static pressure by 33%—enhancing AC efficiency without taxing ductwork. Lab-tested performance data (flow rate, noise, and pressure) is available to ensure system compatibility. See our smoke test video for airflow demonstration. \u003cstrong\u003eProfessional installation recommended.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean, Modern Design:\u003c\/strong\u003e With a 18\" x 3½\" nominal size, this linear slot diffuser is engineered with two sharp, 1-inch openings for a minimalist look that complements any commercial or residential space. (\u003cem\u003ePlease see the diagram for precise measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Velocity Airflow Performance:\u003c\/strong\u003e The wider 1-inch slot is a major upgrade from standard 19mm vent covers, enabling a significantly higher volume of air to move through quietly and efficiently for demanding HVAC systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEliminates Ceiling Dust Marks:\u003c\/strong\u003e An integrated gasket creates a perfect seal against the ceiling tile, preventing leaked air from causing unsightly smudges and ensuring all conditioned air is delivered into the room.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged Commercial Construction:\u003c\/strong\u003e Built from heavy-gauge \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e and fortified with robust Tig welds to withstand the rigors of daily use in any environment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Matte Black Finish:\u003c\/strong\u003e Features a sophisticated matte black powder coat that is highly resistant to scratches, corrosion, and daily wear, ensuring it looks pristine for years to come.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless No-Screw Aesthetic:\u003c\/strong\u003e Achieve a flawless, uninterrupted look with a design that hides all mounting hardware on the interior edges for a clean install. (Note: Fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimize Your Air Distribution:\u003c\/strong\u003e For peak HVAC efficiency, pair this air diffuser with an \u003ca rel=\"noopener\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" target=\"_blank\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003ecustom plenum box\u003c\/span\u003e\u003c\/a\u003e (sold separately) to perfectly balance airflow. Check out our video to learn more.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"Full dimensions of a black 18 inch 2-slot linear diffuser with 25mm openings for high airflow in commercial HVAC systems\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-18-inch-2-slot-black-fulldimensions-flomatrix-hvac.png?v=1745446702\"\u003e\u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Request a Quote for Linear Slot Diffusers\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/double-linear-slot-diffuser-high-flow-black-installed-commercial-hvac.jpg?v=1781044844\" alt=\"Black double linear slot diffuser installed in residential HVAC ceiling, providing high airflow and modern architectural air distribution.\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e103\u003cbr\u003e159\u003cbr\u003e187\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.06\u003cbr\u003e0.15\u003cbr\u003e0.20\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e35\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Contact Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"Flo-Matrix HVAC vs Generic Vent Cover Companies: Quality, Performance \u0026amp; Support\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser_high_flow_two-slot_submittal_high_resolution_download.pdf?v=1750376288\" title=\"Linear Slot Diffuser high flow (two slots) Submittal Sheet High Resolution PDF Download\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser high flow (two slots) Submittal Sheet High Resolution PDF Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser_high_flow_two-slot_submittal_high_resolution_download.pdf?v=1750376288\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Linear Slot Diffuser high airflow 2-slot submittal\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-2-slot-submittal-flomatrix-hvac.jpg?v=1745446702\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Engineer's Standard for Commercial HVAC Grilles and Diffusers\u003c\/h4\u003e\n\u003cp\u003eIn professional HVAC design, \"commercial grade\" is a promise of performance, backed by data. It provides the detailed technical information—from the composition to certified metrics on NC (noise criteria), flow rates, and pressure drop—that engineers rely on for precise specification and predictable results.\u003c\/p\u003e\n\u003cp\u003eWe uphold this promise by subjecting our products to testing aligned with ASHRAE Standard 70-2006 and ADC1062:GRD-84. Our design philosophy leverages \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e to continuously innovate, creating energy-efficient solutions that meet the highest standards of modern building design.\u003c\/p\u003e\n\u003cp\u003eFor over two decades, since 1997, we have specialized in manufacturing high-performance linear slot diffusers (1-12 slots) for commercial applications. \u003cspan style=\"color: rgb(111, 160, 177);\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Us Form - Flo-Matrix HVAC\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eContact our product specialists\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e at +1-604-437-1527 for expert consultation on your next project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":43336186003619,"sku":"FWASD25-2\/125W\/484L\/005","price":49.06,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-18-inch-2-slot-black-frontview-flomatrix-hvac.png?v=1745880065"},{"product_id":"16-linear-slot-diffuser-hvac-air-vent-cover-2-slots-with-25mm-slot-openings-matte-black-finish-wasd25-2","title":"16\" Linear Slot Diffuser Vent Cover (2 Slots with 25mm Openings) - Matte Black - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThis 16-inch linear slot diffuser in matte black combines durability and performance with its architectural-grade extruded aluminum construction. Perfect for VAV systems and general air distribution, its dual 25mm slots with 180° adjustable blades boost airflow by 17% over our 19mm two-slot models while reducing static pressure by 33%—enhancing AC efficiency without taxing ductwork. Lab-tested performance data (flow rate, noise, and pressure) is available to ensure system compatibility. See our smoke test video for airflow demonstration. \u003cstrong\u003eProfessional installation recommended.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean, Modern Design:\u003c\/strong\u003e With a 16\" x 3½\" nominal size, this linear slot diffuser is engineered with two sharp, 1-inch openings for a minimalist look that complements any commercial or residential space. (\u003cem\u003ePlease see the diagram for precise measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Velocity Airflow Performance:\u003c\/strong\u003e The wider 1-inch slot is a major upgrade from standard 19mm vent covers, enabling a significantly higher volume of air to move through quietly and efficiently for demanding HVAC systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEliminates Ceiling Dust Marks:\u003c\/strong\u003e An integrated gasket creates a perfect seal against the ceiling tile, preventing leaked air from causing unsightly smudges and ensuring all conditioned air is delivered into the room.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged Commercial Construction:\u003c\/strong\u003e Built from heavy-gauge \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e and fortified with robust Tig welds to withstand the rigors of daily use in any environment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Matte Black Finish:\u003c\/strong\u003e Features a sophisticated matte black powder coat that is highly resistant to scratches, corrosion, and daily wear, ensuring it looks pristine for years to come.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless No-Screw Aesthetic:\u003c\/strong\u003e Achieve a flawless, uninterrupted look with a design that hides all mounting hardware on the interior edges for a clean install. (Note: Fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimize Your Air Distribution:\u003c\/strong\u003e For peak HVAC efficiency, pair this air diffuser with an \u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003ecustom plenum box\u003c\/span\u003e\u003c\/a\u003e (sold separately) to perfectly balance airflow. Check out our video to learn more.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cimg alt=\"Full dimensions of a black 16 inch 2-slot linear diffuser with 25mm openings for high airflow in commercial HVAC systems\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-16-inch-2-slot-black-fulldimensions-flomatrix-hvac.png?v=1745358739\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Request a Quote for Linear Slot Diffusers\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" alt=\"Black double linear slot diffuser installed in residential HVAC ceiling, providing high airflow and modern architectural air distribution.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/double-linear-slot-diffuser-high-flow-black-installed-commercial-hvac.jpg?v=1781044844\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e91\u003cbr\u003e141\u003cbr\u003e166\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.06\u003cbr\u003e0.15\u003cbr\u003e0.20\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e35\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Contact Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"What Makes Flo-Matrix HVAC the Preferred Choice for Linear Slot Diffusers\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser_high_flow_two-slot_submittal_high_resolution_download.pdf?v=1750376288\" title=\"Linear Slot Diffuser high flow (two slots) Submittal Sheet High Resolution PDF Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Linear Slot Diffuser high airflow 2-slot submittal\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-2-slot-submittal-flomatrix-hvac.jpg?v=1745358837\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Engineer's Standard for Commercial HVAC Grilles and Diffusers\u003c\/h4\u003e\n\u003cp\u003eIn professional HVAC design, \"commercial grade\" is a promise of performance, backed by data. It provides the detailed technical information—from the composition to certified metrics on NC (noise criteria), flow rates, and pressure drop—that engineers rely on for precise specification and predictable results.\u003c\/p\u003e\n\u003cp\u003eWe uphold this promise by subjecting our products to testing aligned with ASHRAE Standard 70-2006 and ADC1062:GRD-84. Our design philosophy leverages \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e to continuously innovate, creating energy-efficient solutions that meet the highest standards of modern building design.\u003c\/p\u003e\n\u003cp\u003eFor over two decades, since 1997, we have specialized in manufacturing high-performance linear slot diffusers (1-12 slots) for commercial applications.\u003cspan style=\"color: rgb(111, 160, 177);\"\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003eContact our product specialists\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e at +1-604-437-1527 for expert consultation on your next project.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":43336195834019,"sku":"FWASD25-2\/125W\/434L\/005","price":43.98,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-16-inch-2-slot-black-frontview-flomatrix-hvac.png?v=1745447138"},{"product_id":"22-linear-slot-diffuser-hvac-air-vent-cover-2-slots-with-25mm-slot-openings-matte-black-finish-wasd25-2","title":"22\" Linear Slot Diffuser Vent Cover (2 Slots with 25mm Openings) - Matte Black - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThis 22-inch linear slot diffuser in matte black combines durability and performance with its architectural-grade extruded aluminum construction. Perfect for VAV systems and general air distribution, its dual 25mm slots with 180° adjustable blades boost airflow by 17% over our 19mm two-slot models while reducing static pressure by 33%—enhancing AC efficiency without taxing ductwork. Lab-tested performance data (flow rate, noise, and pressure) is available to ensure system compatibility. See our smoke test video for airflow demonstration. \u003cstrong\u003eProfessional installation recommended.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean, Modern Design:\u003c\/strong\u003e With a 22\" x 3½\" nominal size, this linear slot diffuser is engineered with two sharp, 1-inch openings for a minimalist look that complements any commercial or residential space. (\u003cem\u003ePlease see the diagram for precise measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Velocity Airflow Performance:\u003c\/strong\u003e The wider 1-inch slot is a major upgrade from standard 19mm vent covers, enabling a significantly higher volume of air to move through quietly and efficiently for demanding HVAC systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEliminates Ceiling Dust Marks:\u003c\/strong\u003e An integrated gasket creates a perfect seal against the ceiling tile, preventing leaked air from causing unsightly smudges and ensuring all conditioned air is delivered into the room.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged Commercial Construction:\u003c\/strong\u003e Built from heavy-gauge \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e and fortified with robust Tig welds to withstand the rigors of daily use in any environment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Matte Black Finish:\u003c\/strong\u003e Features a sophisticated matte black powder coat that is highly resistant to scratches, corrosion, and daily wear, ensuring it looks pristine for years to come.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless No-Screw Aesthetic:\u003c\/strong\u003e Achieve a flawless, uninterrupted look with a design that hides all mounting hardware on the interior edges for a clean install. (Note: Fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimize Your Air Distribution:\u003c\/strong\u003e For peak HVAC efficiency, pair this air diffuser with an \u003ca rel=\"noopener\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" target=\"_blank\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003ecustom plenum box\u003c\/span\u003e\u003c\/a\u003e (sold separately) to perfectly balance airflow. Check out our video to learn more.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"Full dimensions of a black 22 inch 2-slot linear diffuser with 25mm openings for high airflow in commercial HVAC systems\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-22-inch-2-slot-black-fulldimensions-flomatrix-hvac.png?v=1745447832\"\u003e\u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Request a Quote for Linear Slot Diffusers\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/double-linear-slot-diffuser-high-flow-black-installed-commercial-hvac.jpg?v=1781044844\" alt=\"Black double linear slot diffuser installed in residential HVAC ceiling, providing high airflow and modern architectural air distribution.\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003ch5\u003e\u003cbr\u003e\u003c\/h5\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e126\u003cbr\u003e194\u003cbr\u003e229\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.06\u003cbr\u003e0.15\u003cbr\u003e0.20\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e35\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Contact Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"Premium Linear Slot Diffusers: How Flo-Matrix HVAC Stands Above Generic Suppliers\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser high flow (two slots) Submittal Sheet High Resolution PDF Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser_high_flow_two-slot_submittal_high_resolution_download.pdf?v=1750376288\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Linear Slot Diffuser high airflow 2-slot submittal\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-2-slot-submittal-flomatrix-hvac.jpg?v=1745447832\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Engineer's Standard for Commercial HVAC Grilles and Diffusers\u003c\/h4\u003e\n\u003cp\u003eIn professional HVAC design, \"commercial grade\" is a promise of performance, backed by data. It provides the detailed technical information—from the composition to certified metrics on NC (noise criteria), flow rates, and pressure drop—that engineers rely on for precise specification and predictable results.\u003c\/p\u003e\n\u003cp\u003eWe uphold this promise by subjecting our products to testing aligned with ASHRAE Standard 70-2006 and ADC1062:GRD-84. Our design philosophy leverages \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e to continuously innovate, creating energy-efficient solutions that meet the highest standards of modern building design.\u003c\/p\u003e\n\u003cp\u003eFor over two decades, since 1997, we have specialized in manufacturing high-performance linear slot diffusers (1-12 slots) for commercial applications. \u003cspan style=\"color: rgb(111, 160, 177);\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Us Form - Flo-Matrix HVAC\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eContact our product specialists\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e at +1-604-437-1527 for expert consultation on your next project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":43336199274659,"sku":"FWASD25-2\/125W\/588L\/005","price":55.21,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-22-inch-2-slot-black-frontview-flomatrix-hvac.png?v=1745881807"},{"product_id":"16-linear-slot-diffuser-hvac-air-vent-cover-2-slots-with-19mm-slot-openings-matte-black-finish-wasd19-2","title":"16\" Linear Slot Diffuser Vent Cover (2 Slots with 19mm Openings) - Matte Black - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThe 16-inch linear slot diffuser delivers both form and function with its matte black finish and heavy-duty extruded aluminum build. Designed for architects and HVAC pros, this dual-slot model moves more air than single-slot versions while maintaining precise control via 19mm adjustable blades (up to a 180° air pattern). Perfect for VAV systems and general airflow in commercial or residential spaces, it combines architectural-grade durability with optimized performance. Check our smoke test video to see it in action in the videos section. \u003cstrong\u003eProfessional installation recommended for best results.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Design \u0026amp; Fit:\u003c\/strong\u003e With a 16\" x 3¼\" nominal size, this linear slot diffuser features two crisp, ¾\" openings for a sharp, modern look that seamlessly integrates into any ceiling. (\u003cem\u003eCheck the size diagram for exact measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrevents Ceiling Smudges \u0026amp; Stains:\u003c\/strong\u003e A built-in gasket creates an airtight seal against the ceiling. This stops air leakage, protects your ceiling from dust marks, and ensures airflow is directed perfectly through the slotted vent covers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty \u0026amp; Built to Last:\u003c\/strong\u003e : Constructed from commercial-grade \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e. It's reinforced with Tig welds to prevent cracking, chipping, or bending, guaranteeing a lifetime of reliable performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Matte Black Finish:\u003c\/strong\u003e Features a sleek, matte black powder coat finish. This is not only for its modern appeal but also for its exceptional resistance to corrosion, scuffs, and daily wear and tear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSleek, No-Visible-Screw Design:\u003c\/strong\u003e Achieve a clean, minimalist installation with no screws showing on the face of the register. All fastening points are cleverly hidden on the inner sides for a flawless finish. (Please note: fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTailor Your Airflow:\u003c\/strong\u003e For ultimate control, easily pair this unit with a \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecustom plenum box\u003c\/a\u003e\u003c\/span\u003e (sold separately) to fine-tune performance for any HVAC system. See our video guide to learn more about plenum options.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-16-inch-2-slot-black-fulldimensions-flomatrix-hvac.jpg?v=1745269172\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" title=\"Request a Quote for Linear Slot Diffusers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/double-linear-slot-diffuser-black-installed-commercial-hvac.jpg?v=1780957985\" alt=\"Double linear slot diffuser in black finish installed in a ceiling HVAC system, providing modern architectural air distribution for commercial buildings, offices, hotels, retail spaces, and custom residential homes.\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e85\u003cbr\u003e125\u003cbr\u003e166\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.09\u003cbr\u003e0.18\u003cbr\u003e0.31\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e40\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Contact Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/span\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/collections\/linear-slot-diffuser-double-slots-with-25mm-wide-slot-opening\" title=\"Linear Slot Diffuser - 25mm wide openings - 2 Slots Vent Covers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003eNeed more airflow? See the enhanced airflow 2-slots diffuser\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"Why Flo-Matrix HVAC Is Different From Other Linear Slot Diffuser Suppliers\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_2-slot_submittal_high_resolution_download.pdf?v=1750374563\" title=\"Linear Slot Diffuser (two slots) Submittal Sheet High Resolution PDF Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-2-slot-submittal-flomatrix-hvac_147063a2-0565-40da-bfea-73d67ce336ea.jpg?v=1745269172\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Key Characteristics of Commercial-Grade Air Distribution Products\u003c\/h4\u003e\n\u003cp\u003eCommercial-grade grilles, registers, and diffusers are defined by one crucial element: complete and accurate technical data. This information empowers architects, engineers, and HVAC contractors to make informed decisions, providing clear details on material grades and comprehensive performance specifications like noise levels (NC), airflow capacity, and pressure drop.\u003c\/p\u003e\n\u003cp\u003eWe ensure our products meet this high bar through rigorous testing in accordance with ASHRAE 70-2006 and ADC1062:GRD-84. Our development process harnesses the power of \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e to innovate and improve, resulting in designs that maximize energy efficiency and airflow control.\u003c\/p\u003e\n\u003cp\u003eWe have manufactured premium linear slot diffusers (1-12 slot options) for the commercial HVAC industry since 1997. For personalized guidance tailored to your project’s needs, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003econtact our product specialists\u003c\/a\u003e\u003c\/span\u003e at +1-604-437-1527.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\n\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":43336206483619,"sku":"FWASD19-2\/114.5W\/434L\/005","price":43.98,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-16-inch-2-slot-black-frontview-flomatrix-hvac.jpg?v=1745872256"},{"product_id":"18-linear-slot-diffuser-hvac-air-vent-cover-2-slots-black","title":"18\" Linear Slot Diffuser Vent Cover (2 Slots with 19mm Openings) - Matte Black - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThe 18-inch linear slot diffuser delivers both form and function with its matte black finish and heavy-duty extruded aluminum build. Designed for architects and HVAC pros, this dual-slot model moves more air than single-slot versions while maintaining precise control via 19mm adjustable blades (up to a 180° air pattern). Perfect for VAV systems and general airflow in commercial or residential spaces, it combines architectural-grade durability with optimized performance. Check our smoke test video to see it in action in the videos section. \u003cstrong\u003eProfessional installation recommended for best results.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Design \u0026amp; Fit:\u003c\/strong\u003e With a 18\" x 3¼\" nominal size, this linear slot diffuser features two crisp, ¾\" openings for a sharp, modern look that seamlessly integrates into any ceiling. (\u003cem\u003eCheck the size diagram for exact measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrevents Ceiling Smudges \u0026amp; Stains:\u003c\/strong\u003e A built-in gasket creates an airtight seal against the ceiling. This stops air leakage, protects your ceiling from dust marks, and ensures airflow is directed perfectly through the slotted vent covers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty \u0026amp; Built to Last:\u003c\/strong\u003e : Constructed from commercial-grade \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e. It's reinforced with Tig welds to prevent cracking, chipping, or bending, guaranteeing a lifetime of reliable performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Matte Black Finish:\u003c\/strong\u003e Features a sleek, matte black powder coat finish. This is not only for its modern appeal but also for its exceptional resistance to corrosion, scuffs, and daily wear and tear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSleek, No-Visible-Screw Design:\u003c\/strong\u003e Achieve a clean, minimalist installation with no screws showing on the face of the register. All fastening points are cleverly hidden on the inner sides for a flawless finish. (Please note: fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTailor Your Airflow:\u003c\/strong\u003e For ultimate control, easily pair this unit with a \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecustom plenum box\u003c\/a\u003e\u003c\/span\u003e (sold separately) to fine-tune performance for any HVAC system. See our video guide to learn more about plenum options.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-18-inch-2-slot-black-fulldimensions-flomatrix-hvac.jpg?v=1745269688\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" title=\"Request a Quote for Linear Slot Diffusers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/double-linear-slot-diffuser-black-installed-commercial-hvac.jpg?v=1780957985\" alt=\"Double linear slot diffuser in black finish installed in a ceiling HVAC system, providing modern architectural air distribution for commercial buildings, offices, hotels, retail spaces, and custom residential homes.\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e96\u003cbr\u003e140\u003cbr\u003e187\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.09\u003cbr\u003e0.18\u003cbr\u003e0.31\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e40\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Contact Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/span\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/collections\/linear-slot-diffuser-double-slots-with-25mm-wide-slot-opening\" title=\"Linear Slot Diffuser - 25mm wide openings - 2 Slots Vent Covers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003eNeed more airflow? See the enhanced airflow 2-slots diffuser\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"The Flo-Matrix Difference: Premium Linear Slot Diffusers vs Generic HVAC Vents\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_2-slot_submittal_high_resolution_download.pdf?v=1750374563\" title=\"Linear Slot Diffuser (two slots) Submittal Sheet High Resolution PDF Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-2-slot-submittal-flomatrix-hvac_147063a2-0565-40da-bfea-73d67ce336ea.jpg?v=1745269688\" alt=\"Linear Slot Diffuser -2-slot submittal\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Key Characteristics of Commercial-Grade Air Distribution Products\u003c\/h4\u003e\n\u003cp\u003eCommercial-grade grilles, registers, and diffusers are defined by one crucial element: complete and accurate technical data. This information empowers architects, engineers, and HVAC contractors to make informed decisions, providing clear details on material grades and comprehensive performance specifications like noise levels (NC), airflow capacity, and pressure drop.\u003c\/p\u003e\n\u003cp\u003eWe ensure our products meet this high bar through rigorous testing in accordance with ASHRAE 70-2006 and ADC1062:GRD-84. Our development process harnesses the power of \u003ca rel=\"noopener\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" target=\"_blank\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003ecomputational fluid dynamics (CFD)\u003c\/span\u003e\u003c\/a\u003e to innovate and improve, resulting in designs that maximize energy efficiency and airflow control.\u003c\/p\u003e\n\u003cp\u003eWe have manufactured premium linear slot diffusers (1-12 slot options) for the commercial HVAC industry since 1997. For personalized guidance tailored to your project’s needs, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003econtact our product specialists\u003c\/a\u003e\u003c\/span\u003e at +1-604-437-1527.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":43336208613539,"sku":"FWASD19-2\/114.5W\/484L\/005","price":49.06,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-18-inch-2-slot-black-frontview-flomatrix-hvac.jpg?v=1745269688"},{"product_id":"20-linear-slot-diffuser-hvac-air-vent-cover-2-slots-with-19mm-slot-openings-matte-black-finish-wasd19-2","title":"20\" Linear Slot Diffuser Vent Cover (2 Slots with 19mm Openings) - Matte Black - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThe 20-inch linear slot diffuser delivers both form and function with its matte black finish and heavy-duty extruded aluminum build. Designed for architects and HVAC pros, this dual-slot model moves more air than single-slot versions while maintaining precise control via 19mm adjustable blades (up to a 180° air pattern). Perfect for VAV systems and general airflow in commercial or residential spaces, it combines architectural-grade durability with optimized performance. Check our smoke test video to see it in action in the videos section. \u003cstrong\u003eProfessional installation recommended for best results.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Design \u0026amp; Fit:\u003c\/strong\u003e With a 20\" x 3¼\" nominal size, this linear slot diffuser features two crisp, ¾\" openings for a sharp, modern look that seamlessly integrates into any ceiling. (\u003cem\u003eCheck the size diagram for exact measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrevents Ceiling Smudges \u0026amp; Stains:\u003c\/strong\u003e A built-in gasket creates an airtight seal against the ceiling. This stops air leakage, protects your ceiling from dust marks, and ensures airflow is directed perfectly through the slotted vent covers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty \u0026amp; Built to Last:\u003c\/strong\u003e : Constructed from commercial-grade \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e. It's reinforced with Tig welds to prevent cracking, chipping, or bending, guaranteeing a lifetime of reliable performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Matte Black Finish:\u003c\/strong\u003e Features a sleek, matte black powder coat finish. This is not only for its modern appeal but also for its exceptional resistance to corrosion, scuffs, and daily wear and tear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSleek, No-Visible-Screw Design:\u003c\/strong\u003e Achieve a clean, minimalist installation with no screws showing on the face of the register. All fastening points are cleverly hidden on the inner sides for a flawless finish. (Please note: fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTailor Your Airflow:\u003c\/strong\u003e For ultimate control, easily pair this unit with a \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecustom plenum box\u003c\/a\u003e\u003c\/span\u003e (sold separately) to fine-tune performance for any HVAC system. See our video guide to learn more about plenum options.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-20-inch-2-slot-black-fulldimensions-flomatrix-hvac.jpg?v=1745271112\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" title=\"Request a Quote for Linear Slot Diffusers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/double-linear-slot-diffuser-black-installed-commercial-hvac.jpg?v=1780957985\" alt=\"Double linear slot diffuser in black finish installed in a ceiling HVAC system, providing modern architectural air distribution for commercial buildings, offices, hotels, retail spaces, and custom residential homes.\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e107\u003cbr\u003e156\u003cbr\u003e208\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.09\u003cbr\u003e0.18\u003cbr\u003e0.31\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e40\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Contact Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/span\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/collections\/linear-slot-diffuser-double-slots-with-25mm-wide-slot-opening\" title=\"Linear Slot Diffuser - 25mm wide openings - 2 Slots Vent Covers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003eNeed more airflow? See the enhanced airflow 2-slots diffuser\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"Why Flo-Matrix HVAC Is Different From Other Linear Slot Diffuser Suppliers\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_2-slot_submittal_high_resolution_download.pdf?v=1750374563\" title=\"Linear Slot Diffuser (two slots) Submittal Sheet High Resolution PDF Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-2-slot-submittal-flomatrix-hvac_147063a2-0565-40da-bfea-73d67ce336ea.jpg?v=1745269688\" alt=\"Linear Slot Diffuser -2-slot submittal\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Key Characteristics of Commercial-Grade Air Distribution Products\u003c\/h4\u003e\n\u003cp\u003eCommercial-grade grilles, registers, and diffusers are defined by one crucial element: complete and accurate technical data. This information empowers architects, engineers, and HVAC contractors to make informed decisions, providing clear details on material grades and comprehensive performance specifications like noise levels (NC), airflow capacity, and pressure drop.\u003c\/p\u003e\n\u003cp\u003eWe ensure our products meet this high bar through rigorous testing in accordance with ASHRAE 70-2006 and ADC1062:GRD-84. Our development process harnesses the power of \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e\u003ca rel=\"noopener\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" target=\"_blank\"\u003e\u003c\/a\u003e to innovate and improve, resulting in designs that maximize energy efficiency and airflow control.\u003c\/p\u003e\n\u003cp\u003eWe have manufactured premium linear slot diffusers (1-12 slot options) for the commercial HVAC industry since 1997. For personalized guidance tailored to your project’s needs, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003econtact our product specialists\u003c\/a\u003e\u003c\/span\u003e\u003ca rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003e\u003c\/a\u003e at +1-604-437-1527.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":43336211071139,"sku":"FWASD19-2\/114.5W\/536L\/005","price":52.96,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-20-inch-2-slot-black-frontview-flomatrix-hvac.jpg?v=1745874491"},{"product_id":"22-linear-slot-diffuser-hvac-air-vent-cover-2-slots-black","title":"22\" Linear Slot Diffuser Vent Cover (2 Slots with 19mm Openings) - Matte Black - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThe 22-inch linear slot diffuser delivers both form and function with its matte black finish and heavy-duty extruded aluminum build. Designed for architects and HVAC pros, this dual-slot model moves more air than single-slot versions while maintaining precise control via 19mm adjustable blades (up to a 180° air pattern). Perfect for VAV systems and general airflow in commercial or residential spaces, it combines architectural-grade durability with optimized performance. Check our smoke test video to see it in action in the videos section. \u003cstrong\u003eProfessional installation recommended for best results.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Design \u0026amp; Fit:\u003c\/strong\u003e With a 22\" x 3¼\" nominal size, this linear slot diffuser features two crisp, ¾\" openings for a sharp, modern look that seamlessly integrates into any ceiling. (\u003cem\u003eCheck the size diagram for exact measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrevents Ceiling Smudges \u0026amp; Stains:\u003c\/strong\u003e A built-in gasket creates an airtight seal against the ceiling. This stops air leakage, protects your ceiling from dust marks, and ensures airflow is directed perfectly through the slotted vent covers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty \u0026amp; Built to Last:\u003c\/strong\u003e : Constructed from commercial-grade \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e. It's reinforced with Tig welds to prevent cracking, chipping, or bending, guaranteeing a lifetime of reliable performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Matte Black Finish:\u003c\/strong\u003e Features a sleek, matte black powder coat finish. This is not only for its modern appeal but also for its exceptional resistance to corrosion, scuffs, and daily wear and tear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSleek, No-Visible-Screw Design:\u003c\/strong\u003e Achieve a clean, minimalist installation with no screws showing on the face of the register. All fastening points are cleverly hidden on the inner sides for a flawless finish. (Please note: fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTailor Your Airflow:\u003c\/strong\u003e For ultimate control, easily pair this unit with a \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" target=\"_blank\"\u003ecustom plenum box\u003c\/a\u003e\u003c\/span\u003e (sold separately) to fine-tune performance for any HVAC system. See our video guide to learn more about plenum options.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Full dimensions of a black 22-inch 2-slot linear diffuser with 19mm openings for precision airflow in commercial HVAC systems\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-22-inch-2-slot-black-fulldimensions-flomatrix-hvac.jpg?v=1745271655\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Request a Quote for Linear Slot Diffusers\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/double-linear-slot-diffuser-black-installed-commercial-hvac.jpg?v=1780957985\" alt=\"Double linear slot diffuser in black finish installed in a ceiling HVAC system, providing modern architectural air distribution for commercial buildings, offices, hotels, retail spaces, and custom residential homes.\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e117\u003cbr\u003e171\u003cbr\u003e229\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.09\u003cbr\u003e0.18\u003cbr\u003e0.31\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e40\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Contact Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"The Flo-Matrix Difference: Premium Linear Slot Diffusers vs Generic HVAC Vents\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser (two slots) Submittal Sheet High Resolution PDF Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_2-slot_submittal_high_resolution_download.pdf?v=1750374563\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Linear Slot Diffuser -2-slot submittal\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-2-slot-submittal-flomatrix-hvac_147063a2-0565-40da-bfea-73d67ce336ea.jpg?v=1745271655\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Key Characteristics of Commercial-Grade Air Distribution Products\u003c\/h4\u003e\n\u003cp\u003eCommercial-grade grilles, registers, and diffusers are defined by one crucial element: complete and accurate technical data. This information empowers architects, engineers, and HVAC contractors to make informed decisions, providing clear details on material grades and comprehensive performance specifications like noise levels (NC), airflow capacity, and pressure drop.\u003c\/p\u003e\n\u003cp\u003eWe ensure our products meet this high bar through rigorous testing in accordance with ASHRAE 70-2006 and ADC1062:GRD-84. Our development process harnesses the power of \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e to innovate and improve, resulting in designs that maximize energy efficiency and airflow control.\u003c\/p\u003e\n\u003cp\u003eWe have manufactured premium linear slot diffusers (1-12 slot options) for the commercial HVAC industry since 1997. For personalized guidance tailored to your project’s needs, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Us Form - Flo-Matrix HVAC\" rel=\"noopener\" target=\"_blank\"\u003econtact our product specialists\u003c\/a\u003e\u003c\/span\u003e at +1-604-437-1527.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":43336212480163,"sku":"FWASD19-2\/114.5W\/588L\/005","price":55.21,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-22-inch-2-slot-black-frontview-flomatrix-hvac.jpg?v=1745874940"},{"product_id":"32-linear-slot-diffuser-hvac-air-vent-cover-2-slots-black","title":"32\" Linear Slot Diffuser Vent Cover (2 Slots with 19mm Openings) - Matte Black - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThe 32-inch linear slot diffuser delivers both form and function with its matte black finish and heavy-duty extruded aluminum build. Designed for architects and HVAC pros, this dual-slot model moves more air than single-slot versions while maintaining precise control via 19mm adjustable blades (up to a 180° air pattern). Perfect for VAV systems and general airflow in commercial or residential spaces, it combines architectural-grade durability with optimized performance. Check our smoke test video to see it in action in the videos section. \u003cstrong\u003eProfessional installation recommended for best results.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Design \u0026amp; Fit:\u003c\/strong\u003e With a 32\" x 3¼\" nominal size, this linear slot diffuser features two crisp, ¾\" openings for a sharp, modern look that seamlessly integrates into any ceiling. (\u003cem\u003eCheck the size diagram for exact measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrevents Ceiling Smudges \u0026amp; Stains:\u003c\/strong\u003e A built-in gasket creates an airtight seal against the ceiling. This stops air leakage, protects your ceiling from dust marks, and ensures airflow is directed perfectly through the slotted vent covers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty \u0026amp; Built to Last:\u003c\/strong\u003e : Constructed from commercial-grade \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e. It's reinforced with Tig welds to prevent cracking, chipping, or bending, guaranteeing a lifetime of reliable performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Matte Black Finish:\u003c\/strong\u003e Features a sleek, matte black powder coat finish. This is not only for its modern appeal but also for its exceptional resistance to corrosion, scuffs, and daily wear and tear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSleek, No-Visible-Screw Design:\u003c\/strong\u003e Achieve a clean, minimalist installation with no screws showing on the face of the register. All fastening points are cleverly hidden on the inner sides for a flawless finish. (Please note: fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTailor Your Airflow:\u003c\/strong\u003e For ultimate control, easily pair this unit with a \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecustom plenum box\u003c\/a\u003e\u003c\/span\u003e (sold separately) to fine-tune performance for any HVAC system. See our video guide to learn more about plenum options.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"Full dimensions of a black 32-inch 2-slot linear diffuser with 19mm openings for precision airflow in commercial HVAC systems\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-32-inch-2-slot-black-fulldimensions-flomatrix-hvac.jpg?v=1745877020\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" title=\"Request a Quote for Linear Slot Diffusers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/double-linear-slot-diffuser-black-installed-commercial-hvac.jpg?v=1780957985\" alt=\"Double linear slot diffuser in black finish installed in a ceiling HVAC system, providing modern architectural air distribution for commercial buildings, offices, hotels, retail spaces, and custom residential homes.\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e171\u003cbr\u003e250\u003cbr\u003e333\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.09\u003cbr\u003e0.18\u003cbr\u003e0.31\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e40\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Contact Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/span\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/collections\/linear-slot-diffuser-double-slots-with-25mm-wide-slot-opening\" title=\"Linear Slot Diffuser - 25mm wide openings - 2 Slots Vent Covers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003eNeed more airflow? See the enhanced airflow 2-slots diffuser\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/fwasd19-2-vs-fwasd25-2-linear-slot-diffuser-comparison-commercial-hvac_resized.png?v=1780964738\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/fwasd19-2-vs-fwasd25-2-linear-slot-diffuser-comparison-commercial-hvac_resized.png?v=1780964738\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"The Flo-Matrix Difference: Premium Linear Slot Diffusers vs Generic HVAC Vents\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_2-slot_submittal_high_resolution_download.pdf?v=1750374563\" title=\"Linear Slot Diffuser (two slots) Submittal Sheet High Resolution PDF Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-2-slot-submittal-flomatrix-hvac.jpg?v=1745878782\" alt=\"Linear Slot Diffuser -2-slot submittal\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Key Characteristics of Commercial-Grade Air Distribution Products\u003c\/h4\u003e\n\u003cp\u003eCommercial-grade grilles, registers, and diffusers are defined by one crucial element: complete and accurate technical data. This information empowers architects, engineers, and HVAC contractors to make informed decisions, providing clear details on material grades and comprehensive performance specifications like noise levels (NC), airflow capacity, and pressure drop.\u003c\/p\u003e\n\u003cp\u003eWe ensure our products meet this high bar through rigorous testing in accordance with ASHRAE 70-2006 and ADC1062:GRD-84. Our development process harnesses the power of \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e to innovate and improve, resulting in designs that maximize energy efficiency and airflow control.\u003c\/p\u003e\n\u003cp\u003eWe have manufactured premium linear slot diffusers (1-12 slot options) for the commercial HVAC industry since 1997. For personalized guidance tailored to your project’s needs, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003econtact our product specialists\u003c\/a\u003e\u003c\/span\u003e at +1-604-437-1527.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":43336213823651,"sku":"FWASD19-2\/114.5W\/841L\/005","price":85.19,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-32-inch-2-slot-black-frontview-flomatrix-hvac.png?v=1745877020"},{"product_id":"60-linear-slot-diffuser-hvac-air-vent-cover-2-slots-19mm-black","title":"60\" Linear Slot Diffuser Vent Cover (2 Slots with 19mm Openings) - Matte Black - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThe 60-inch linear slot diffuser delivers both form and function with its matte black finish and heavy-duty extruded aluminum build. Designed for architects and HVAC pros, this dual-slot model moves more air than single-slot versions while maintaining precise control via 19mm adjustable blades (up to a 180° air pattern). Perfect for VAV systems and general airflow in commercial or residential spaces, it combines architectural-grade durability with optimized performance. Check our smoke test video to see it in action in the videos section. \u003cstrong\u003eProfessional installation recommended for best results.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Design \u0026amp; Fit:\u003c\/strong\u003e With a 60\" x 3¼\" nominal size, this linear slot diffuser features two crisp, ¾\" openings for a sharp, modern look that seamlessly integrates into any ceiling. (\u003cem\u003eCheck the size diagram for exact measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrevents Ceiling Smudges \u0026amp; Stains:\u003c\/strong\u003e A built-in gasket creates an airtight seal against the ceiling. This stops air leakage, protects your ceiling from dust marks, and ensures airflow is directed perfectly through the slotted vent covers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty \u0026amp; Built to Last:\u003c\/strong\u003e : Constructed from commercial-grade \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e. It's reinforced with Tig welds to prevent cracking, chipping, or bending, guaranteeing a lifetime of reliable performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Matte Black Finish:\u003c\/strong\u003e Features a sleek, matte black powder coat finish. This is not only for its modern appeal but also for its exceptional resistance to corrosion, scuffs, and daily wear and tear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSleek, No-Visible-Screw Design:\u003c\/strong\u003e Achieve a clean, minimalist installation with no screws showing on the face of the register. All fastening points are cleverly hidden on the inner sides for a flawless finish. (Please note: fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTailor Your Airflow:\u003c\/strong\u003e For ultimate control, easily pair this unit with a \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecustom plenum box\u003c\/a\u003e\u003c\/span\u003e (sold separately) to fine-tune performance for any HVAC system. See our video guide to learn more about plenum options.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Request a Quote for Linear Slot Diffusers\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" alt=\"Double linear slot diffuser in black finish installed in a ceiling HVAC system, providing modern architectural air distribution for commercial buildings, offices, hotels, retail spaces, and custom residential homes.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/double-linear-slot-diffuser-black-installed-commercial-hvac.jpg?v=1780957985\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e321\u003cbr\u003e468\u003cbr\u003e625\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.09\u003cbr\u003e0.18\u003cbr\u003e0.31\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e40\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Flo-Matrix HVAC\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/span\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser - 25mm wide openings - 2 Slots Vent Covers\" href=\"https:\/\/www.linearairdiffusers.com\/collections\/linear-slot-diffuser-double-slots-with-25mm-wide-slot-opening\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003eNeed more airflow? See the enhanced airflow 2-slots diffuser\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/fwasd19-2-vs-fwasd25-2-linear-slot-diffuser-comparison-commercial-hvac_resized.png?v=1780964738\" target=\"_blank\"\u003e\u003cimg alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/fwasd19-2-vs-fwasd25-2-linear-slot-diffuser-comparison-commercial-hvac_resized.png?v=1780964738\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"Why Flo-Matrix HVAC Linear Slot Diffusers Outperform Generic HVAC Vent Cover Suppliers\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_2-slot_submittal_high_resolution_download.pdf?v=1750374563\" title=\"Linear Slot Diffuser (two slots) Submittal Sheet High Resolution PDF Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg alt=\"Linear Slot Diffuser -2-slot submittal\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-2-slot-submittal-flomatrix-hvac_147063a2-0565-40da-bfea-73d67ce336ea.jpg?v=1745274606\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Key Characteristics of Commercial-Grade Air Distribution Products\u003c\/h4\u003e\n\u003cp\u003eCommercial-grade grilles, registers, and diffusers are defined by one crucial element: complete and accurate technical data. This information empowers architects, engineers, and HVAC contractors to make informed decisions, providing clear details on material grades and comprehensive performance specifications like noise levels (NC), airflow capacity, and pressure drop.\u003c\/p\u003e\n\u003cp\u003eWe ensure our products meet this high bar through rigorous testing in accordance with ASHRAE 70-2006 and ADC1062:GRD-84. Our development process harnesses the power of \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e to innovate and improve, resulting in designs that maximize energy efficiency and airflow control.\u003c\/p\u003e\n\u003cp\u003eWe have manufactured premium linear slot diffusers (1-12 slot options) for the commercial HVAC industry since 1997. For personalized guidance tailored to your project’s needs, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003econtact our product specialists\u003c\/a\u003e\u003c\/span\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Us Form - Flo-Matrix HVAC\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e at +1-604-437-1527.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":43336215036067,"sku":"FWASD19-2\/114.5W\/1552L\/005","price":149.53,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-60-inch-2-slot-black-frontview-flomatrix-hvac.png?v=1745274606"},{"product_id":"72-linear-slot-diffuser-hvac-air-vent-cover-2-slots-with-19mm-slot-openings-matte-black-finish-wasd19-2","title":"72\" Linear Slot Diffuser Vent Cover (2 Slots with 19mm Openings) - Matte Black - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThe 72-inch linear slot diffuser delivers both form and function with its matte black finish and heavy-duty extruded aluminum build. Designed for architects and HVAC pros, this dual-slot model moves more air than single-slot versions while maintaining precise control via 19mm adjustable blades (up to a 180° air pattern). Perfect for VAV systems and general airflow in commercial or residential spaces, it combines architectural-grade durability with optimized performance. Check our smoke test video to see it in action in the videos section. \u003cstrong\u003eProfessional installation recommended for best results.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Design \u0026amp; Fit:\u003c\/strong\u003e With a 72\" x 3¼\" nominal size, this linear slot diffuser features two crisp, ¾\" openings for a sharp, modern look that seamlessly integrates into any ceiling. (\u003cem\u003eCheck the size diagram for exact measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrevents Ceiling Smudges \u0026amp; Stains:\u003c\/strong\u003e A built-in gasket creates an airtight seal against the ceiling. This stops air leakage, protects your ceiling from dust marks, and ensures airflow is directed perfectly through the slotted vent covers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty \u0026amp; Built to Last:\u003c\/strong\u003e : Constructed from commercial-grade \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e. It's reinforced with Tig welds to prevent cracking, chipping, or bending, guaranteeing a lifetime of reliable performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Matte Black Finish:\u003c\/strong\u003e Features a sleek, matte black powder coat finish. This is not only for its modern appeal but also for its exceptional resistance to corrosion, scuffs, and daily wear and tear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSleek, No-Visible-Screw Design:\u003c\/strong\u003e Achieve a clean, minimalist installation with no screws showing on the face of the register. All fastening points are cleverly hidden on the inner sides for a flawless finish. (Please note: fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTailor Your Airflow:\u003c\/strong\u003e For ultimate control, easily pair this unit with a \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" target=\"_blank\"\u003ecustom plenum box\u003c\/a\u003e\u003c\/span\u003e (sold separately) to fine-tune performance for any HVAC system. See our video guide to learn more about plenum options.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" title=\"Request a Quote for Linear Slot Diffusers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/double-linear-slot-diffuser-black-installed-commercial-hvac.jpg?v=1780957985\" alt=\"Double linear slot diffuser in black finish installed in a ceiling HVAC system, providing modern architectural air distribution for commercial buildings, offices, hotels, retail spaces, and custom residential homes.\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e385\u003cbr\u003e562\u003cbr\u003e750\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.09\u003cbr\u003e0.18\u003cbr\u003e0.31\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e40\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Contact Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/span\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/collections\/linear-slot-diffuser-double-slots-with-25mm-wide-slot-opening\" title=\"Linear Slot Diffuser - 25mm wide openings - 2 Slots Vent Covers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003eNeed more airflow? See the enhanced airflow 2-slots diffuser\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/fwasd19-2-vs-fwasd25-2-linear-slot-diffuser-comparison-commercial-hvac_resized.png?v=1780964738\" target=\"_blank\"\u003e\u003cimg alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/fwasd19-2-vs-fwasd25-2-linear-slot-diffuser-comparison-commercial-hvac_resized.png?v=1780964738\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"Why Flo-Matrix HVAC Is Different From Other Linear Slot Diffuser Suppliers\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser (two slots) Submittal Sheet High Resolution PDF Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_2-slot_submittal_high_resolution_download.pdf?v=1750374563\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-2-slot-submittal-flomatrix-hvac_147063a2-0565-40da-bfea-73d67ce336ea.jpg?v=1745274930\" alt=\"Linear Slot Diffuser -2-slot submittal\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\n\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Key Characteristics of Commercial-Grade Air Distribution Products\u003c\/h4\u003e\n\u003cp\u003eCommercial-grade grilles, registers, and diffusers are defined by one crucial element: complete and accurate technical data. This information empowers architects, engineers, and HVAC contractors to make informed decisions, providing clear details on material grades and comprehensive performance specifications like noise levels (NC), airflow capacity, and pressure drop.\u003c\/p\u003e\n\u003cp\u003eWe ensure our products meet this high bar through rigorous testing in accordance with ASHRAE 70-2006 and ADC1062:GRD-84. Our development process harnesses the power of \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e\u003ca rel=\"noopener\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" target=\"_blank\"\u003e\u003c\/a\u003e to innovate and improve, resulting in designs that maximize energy efficiency and airflow control.\u003c\/p\u003e\n\u003cp\u003eWe have manufactured premium linear slot diffusers (1-12 slot options) for the commercial HVAC industry since 1997. For personalized guidance tailored to your project’s needs, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Us Form - Flo-Matrix HVAC\" rel=\"noopener\" target=\"_blank\"\u003econtact our product specialists\u003c\/a\u003e\u003c\/span\u003e\u003ca rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003e\u003c\/a\u003e at +1-604-437-1527.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":43336216772771,"sku":"FWASD19-2\/114.5W\/1857L\/005","price":178.91,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-72-inch-2-slot-black-frontview-flomatrix-hvac.png?v=1745274930"},{"product_id":"96-linear-slot-diffuser-hvac-air-vent-cover-2-slots-with-19mm-slot-openings-matte-black-finish-wasd19-2","title":"96\" Linear Slot Diffuser Vent Cover (2 Slots with 19mm Openings) - Matte Black - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThe 96-inch linear slot diffuser delivers both form and function with its matte black finish and heavy-duty extruded aluminum build. Designed for architects and HVAC pros, this dual-slot model moves more air than single-slot versions while maintaining precise control via 19mm adjustable blades (up to a 180° air pattern). Perfect for VAV systems and general airflow in commercial or residential spaces, it combines architectural-grade durability with optimized performance. Check our smoke test video to see it in action in the videos section. \u003cstrong\u003eProfessional installation recommended for best results.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Design \u0026amp; Fit:\u003c\/strong\u003e With a 96\" x 3¼\" nominal size, this linear slot diffuser features two crisp, ¾\" openings for a sharp, modern look that seamlessly integrates into any ceiling. (\u003cem\u003eCheck the size diagram for exact measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrevents Ceiling Smudges \u0026amp; Stains:\u003c\/strong\u003e A built-in gasket creates an airtight seal against the ceiling. This stops air leakage, protects your ceiling from dust marks, and ensures airflow is directed perfectly through the slotted vent covers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty \u0026amp; Built to Last:\u003c\/strong\u003e : Constructed from commercial-grade \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e. It's reinforced with Tig welds to prevent cracking, chipping, or bending, guaranteeing a lifetime of reliable performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Matte Black Finish:\u003c\/strong\u003e Features a sleek, matte black powder coat finish. This is not only for its modern appeal but also for its exceptional resistance to corrosion, scuffs, and daily wear and tear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSleek, No-Visible-Screw Design:\u003c\/strong\u003e Achieve a clean, minimalist installation with no screws showing on the face of the register. All fastening points are cleverly hidden on the inner sides for a flawless finish. (Please note: fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTailor Your Airflow:\u003c\/strong\u003e For ultimate control, easily pair this unit with a \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" target=\"_blank\"\u003ecustom plenum box\u003c\/a\u003e\u003c\/span\u003e (sold separately) to fine-tune performance for any HVAC system. See our video guide to learn more about plenum options.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" title=\"Request a Quote for Linear Slot Diffusers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/double-linear-slot-diffuser-black-installed-commercial-hvac.jpg?v=1780957985\" alt=\"Double linear slot diffuser in black finish installed in a ceiling HVAC system, providing modern architectural air distribution for commercial buildings, offices, hotels, retail spaces, and custom residential homes.\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e514\u003cbr\u003e750\u003cbr\u003e1000\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.09\u003cbr\u003e0.18\u003cbr\u003e0.31\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e40\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Flo-Matrix HVAC\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/span\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser - 25mm wide openings - 2 Slots Vent Covers\" href=\"https:\/\/www.linearairdiffusers.com\/collections\/linear-slot-diffuser-double-slots-with-25mm-wide-slot-opening\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003eNeed more airflow? See the enhanced airflow 2-slots diffuser\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/fwasd19-2-vs-fwasd25-2-linear-slot-diffuser-comparison-commercial-hvac_resized.png?v=1780964738\" target=\"_blank\"\u003e\u003cimg alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/fwasd19-2-vs-fwasd25-2-linear-slot-diffuser-comparison-commercial-hvac_resized.png?v=1780964738\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"The Flo-Matrix Difference: Premium Linear Slot Diffusers vs Generic HVAC Vents\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser (two slots) Submittal Sheet High Resolution PDF Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_2-slot_submittal_high_resolution_download.pdf?v=1750374563\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-2-slot-submittal-flomatrix-hvac_147063a2-0565-40da-bfea-73d67ce336ea.jpg?v=1745275180\" alt=\"Linear Slot Diffuser -2-slot submittal\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Key Characteristics of Commercial-Grade Air Distribution Products\u003c\/h4\u003e\n\u003cp\u003eCommercial-grade grilles, registers, and diffusers are defined by one crucial element: complete and accurate technical data. This information empowers architects, engineers, and HVAC contractors to make informed decisions, providing clear details on material grades and comprehensive performance specifications like noise levels (NC), airflow capacity, and pressure drop.\u003c\/p\u003e\n\u003cp\u003eWe ensure our products meet this high bar through rigorous testing in accordance with ASHRAE 70-2006 and ADC1062:GRD-84. Our development process harnesses the power of \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e to innovate and improve, resulting in designs that maximize energy efficiency and airflow control.\u003c\/p\u003e\n\u003cp\u003eWe have manufactured premium linear slot diffusers (1-12 slot options) for the commercial HVAC industry since 1997. For personalized guidance tailored to your project’s needs, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Us Form - Flo-Matrix HVAC\" rel=\"noopener\" target=\"_blank\"\u003econtact our product specialists\u003c\/a\u003e\u003c\/span\u003e at +1-604-437-1527.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":43336217591971,"sku":"FWASD19-2\/114.5W\/2467L\/005","price":237.68,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-96-inch-2-slot-black-frontview-flomatrix-hvac.png?v=1745275180"},{"product_id":"72-linear-slot-diffuser-hvac-air-vent-cover-2-slots-with-19mm-slot-openings-matte-white-finish-wasd19-2","title":"72\" Linear Slot Diffuser Vent Cover (2 Slots with 19mm Openings) - Matte White - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThis 72-inch linear slot diffuser features a crisp white finish that blends seamlessly into modern interiors. Its heavy-duty extruded aluminum construction stands up to daily use in both commercial buildings and homes. The dual-slot design delivers stronger airflow than standard single-slot models, while the 19mm adjustable blades let you direct air precisely across a full 180-degree range. HVAC professionals and architects appreciate how it balances architectural aesthetics with VAV system performance. Want to see how it distributes air? Our smoke test video demonstrates real-world operation. \u003cstrong\u003eFor optimal results, we recommend having a qualified technician handle installation.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Design \u0026amp; Fit:\u003c\/strong\u003e With a 72\" x 3¼\" nominal size, this linear slot diffuser features two crisp, ¾\" openings for a sharp, modern look that seamlessly integrates into any ceiling. (\u003cem\u003eCheck the size diagram for exact measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrevents Ceiling Smudges \u0026amp; Stains:\u003c\/strong\u003e A built-in gasket creates an airtight seal against the ceiling. This stops air leakage, protects your ceiling from dust marks, and ensures airflow is directed perfectly through the slotted vent covers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty \u0026amp; Built to Last:\u003c\/strong\u003e : Constructed from commercial-grade \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e. It's reinforced with Tig welds to prevent cracking, chipping, or bending, guaranteeing a lifetime of reliable performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrisp, Durable Finish:\u003c\/strong\u003e Finished in a premium matte white, this strong powder coat is specifically chosen for its superior defense against scratches, corrosion, and fading, ensuring long-lasting beauty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSleek, No-Visible-Screw Design:\u003c\/strong\u003e Achieve a clean, minimalist installation with no screws showing on the face of the register. All fastening points are cleverly hidden on the inner sides for a flawless finish. (Please note: fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTailor Your Airflow:\u003c\/strong\u003e For ultimate control, easily pair this unit with a \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecustom plenum box\u003c\/a\u003e\u003c\/span\u003e (sold separately) to fine-tune performance for any HVAC system. See our video guide to learn more about plenum options.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Request a Quote for Linear Slot Diffusers\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" alt=\"White double linear slot diffuser installed on the wall for modern HVAC air distribution and seamless interior design\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Double_Linear_Slot_Diffuser_White_Short_length_Installed_Photo.jpg?v=1780354694\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e385\u003cbr\u003e562\u003cbr\u003e750\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.09\u003cbr\u003e0.18\u003cbr\u003e0.31\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e40\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Contact Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/span\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/collections\/linear-slot-diffuser-double-slots-with-25mm-wide-slot-opening\" title=\"Linear Slot Diffuser - 25mm wide openings - 2 Slots Vent Covers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003eNeed more airflow? See the enhanced airflow 2-slots diffuser\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/fwasd19-2-vs-fwasd25-2-linear-slot-diffuser-comparison-commercial-hvac_resized.png?v=1780964738\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/fwasd19-2-vs-fwasd25-2-linear-slot-diffuser-comparison-commercial-hvac_resized.png?v=1780964738\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"Why Flo-Matrix HVAC Linear Slot Diffusers Outperform Generic HVAC Vent Cover Suppliers\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003ch5\u003e\u003cbr\u003e\u003c\/h5\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_2-slot_submittal_high_resolution_download.pdf?v=1750374563\" title=\"Linear Slot Diffuser (two slots) Submittal Sheet High Resolution PDF Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg alt=\"Linear Slot Diffuser -2-slot submittal\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-2-slot-submittal-flomatrix-hvac.jpg?v=1745266458\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Key Characteristics of Commercial-Grade Air Distribution Products\u003c\/h4\u003e\n\u003cp\u003eCommercial-grade grilles, registers, and diffusers are defined by one crucial element: complete and accurate technical data. This information empowers architects, engineers, and HVAC contractors to make informed decisions, providing clear details on material grades and comprehensive performance specifications like noise levels (NC), airflow capacity, and pressure drop.\u003c\/p\u003e\n\u003cp\u003eWe ensure our products meet this high bar through rigorous testing in accordance with ASHRAE 70-2006 and ADC1062:GRD-84. Our development process harnesses the power of \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e to innovate and improve, resulting in designs that maximize energy efficiency and airflow control.\u003c\/p\u003e\n\u003cp\u003eWe have manufactured premium linear slot diffusers (1-12 slot options) for the commercial HVAC industry since 1997. For personalized guidance tailored to your project’s needs, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003econtact our product specialists\u003c\/a\u003e\u003c\/span\u003e at +1-604-437-1527.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":43336219197603,"sku":"FWASD19-2\/114.5W\/1857L\/PCWS02","price":178.91,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-72-inch-2-slot-white-frontview-flomatrix-hvac.png?v=1745878445"},{"product_id":"96-linear-slot-diffuser-hvac-air-vent-cover-2-slots-with-19mm-slot-openings-matte-white-finish-wasd19-2","title":"96\" Linear Slot Diffuser Vent Cover (2 Slots with 19mm Openings) - Matte White - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThis 96-inch linear slot diffuser features a crisp white finish that blends seamlessly into modern interiors. Its heavy-duty extruded aluminum construction stands up to daily use in both commercial buildings and homes. The dual-slot design delivers stronger airflow than standard single-slot models, while the 19mm adjustable blades let you direct air precisely across a full 180-degree range. HVAC professionals and architects appreciate how it balances architectural aesthetics with VAV system performance. Want to see how it distributes air? Our smoke test video demonstrates real-world operation. \u003cstrong\u003eFor optimal results, we recommend having a qualified technician handle installation.\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Design \u0026amp; Fit:\u003c\/strong\u003e With a 96\" x 3¼\" nominal size, this linear slot diffuser features two crisp, ¾\" openings for a sharp, modern look that seamlessly integrates into any ceiling. (\u003cem\u003eCheck the size diagram for exact measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrevents Ceiling Smudges \u0026amp; Stains:\u003c\/strong\u003e A built-in gasket creates an airtight seal against the ceiling. This stops air leakage, protects your ceiling from dust marks, and ensures airflow is directed perfectly through the slotted vent covers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty \u0026amp; Built to Last:\u003c\/strong\u003e : Constructed from commercial-grade \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e. It's reinforced with Tig welds to prevent cracking, chipping, or bending, guaranteeing a lifetime of reliable performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrisp, Durable Finish:\u003c\/strong\u003e Finished in a premium matte white, this strong powder coat is specifically chosen for its superior defense against scratches, corrosion, and fading, ensuring long-lasting beauty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSleek, No-Visible-Screw Design:\u003c\/strong\u003e Achieve a clean, minimalist installation with no screws showing on the face of the register. All fastening points are cleverly hidden on the inner sides for a flawless finish. (Please note: fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTailor Your Airflow:\u003c\/strong\u003e For ultimate control, easily pair this unit with a \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" target=\"_blank\"\u003ecustom plenum box\u003c\/a\u003e\u003c\/span\u003e (sold separately) to fine-tune performance for any HVAC system. See our video guide to learn more about plenum options.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" title=\"Request a Quote for Linear Slot Diffusers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Double_Linear_Slot_Diffuser_White_Short_length_Installed_Photo.jpg?v=1780354694\" alt=\"White double linear slot diffuser installed on the wall for modern HVAC air distribution and seamless interior design\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e514\u003cbr\u003e750\u003cbr\u003e1000\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.09\u003cbr\u003e0.18\u003cbr\u003e0.31\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e40\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Contact Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/span\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/collections\/linear-slot-diffuser-double-slots-with-25mm-wide-slot-opening\" title=\"Linear Slot Diffuser - 25mm wide openings - 2 Slots Vent Covers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003eNeed more airflow? See the enhanced airflow 2-slots diffuser\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/fwasd19-2-vs-fwasd25-2-linear-slot-diffuser-comparison-commercial-hvac_resized.png?v=1780964738\" target=\"_blank\"\u003e\u003cimg alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/fwasd19-2-vs-fwasd25-2-linear-slot-diffuser-comparison-commercial-hvac_resized.png?v=1780964738\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"Why Flo-Matrix HVAC Is Different From Other Linear Slot Diffuser Suppliers\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003ch5\u003e\u003cbr\u003e\u003c\/h5\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser (two slots) Submittal Sheet High Resolution PDF Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_2-slot_submittal_high_resolution_download.pdf?v=1750374563\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-2-slot-submittal-flomatrix-hvac.jpg?v=1745266458\" alt=\"Linear Slot Diffuser -2-slot submittal\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Key Characteristics of Commercial-Grade Air Distribution Products\u003c\/h4\u003e\n\u003cp\u003eCommercial-grade grilles, registers, and diffusers are defined by one crucial element: complete and accurate technical data. This information empowers architects, engineers, and HVAC contractors to make informed decisions, providing clear details on material grades and comprehensive performance specifications like noise levels (NC), airflow capacity, and pressure drop.\u003c\/p\u003e\n\u003cp\u003eWe ensure our products meet this high bar through rigorous testing in accordance with ASHRAE 70-2006 and ADC1062:GRD-84. Our development process harnesses the power of \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e to innovate and improve, resulting in designs that maximize energy efficiency and airflow control.\u003c\/p\u003e\n\u003cp\u003eWe have manufactured premium linear slot diffusers (1-12 slot options) for the commercial HVAC industry since 1997. For personalized guidance tailored to your project’s needs, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Us Form - Flo-Matrix HVAC\" rel=\"noopener\" target=\"_blank\"\u003econtact our product specialists\u003c\/a\u003e\u003c\/span\u003e at +1-604-437-1527.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":43336220999843,"sku":"FWASD19-2\/114.5W\/2467L\/PCWS02","price":237.68,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-96-inch-2-slot-white-frontview-flomatrix-hvac.png?v=1745878749"},{"product_id":"8x4-linear-slot-diffuser-matte-black-casa-series-hvac-modern-air-vent-cover-wasd25-2","title":"8x4\" Linear Slot Diffuser - CASA Series Modern Vent Cover - Matte Black - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003eThis 8x4 inch linear slot diffuser in matte black offers the ultimate upgrade for your home's airflow—seamlessly replacing standard vent covers with a sleek, modern look. Unlike flimsy alternatives, our heavy-duty extruded aluminum construction resists cracking during installation, eliminating frustrating breaks. The rich powder-coated finish adds durability while integrated weather stripping prevents ceiling smudges (a game-changer for hard-to-reach ceiling installations!).\u003c\/p\u003e\n\u003cp\u003eThese precision-engineered diffusers feature 25mm slots with 180° adjustable blades, offering two-way airflow control for customized comfort. Perfect for both residential and professional VAV systems, they combine architectural-grade performance with hassle-free installation—designed as direct replacements for old vent covers. \u003cstrong\u003eFor flawless results and optimal airflow, professional installation is recommended.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cbr\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eA Perfect Fit for Your Home:\u003c\/strong\u003e With its standard 8x4\" size, our CASA Series is the ideal, hassle-free retrofit upgrade to replace old, bulky vent covers with a sleek, modern linear slot diffuser. \u003cem\u003ePlease see the diagram for precise measurements.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean \u0026amp; Modern Residential Design:\u003c\/strong\u003e This vent cover features a crisp, minimalist profile with a defined 1-inch slot opening, designed to seamlessly complement any room's aesthetic without demanding costly renovation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior, Quiet Airflow:\u003c\/strong\u003e The engineered 1-inch slot allows a higher volume of air to pass through more efficiently than traditional 19mm AC vent covers, improving your HVAC system's performance without added noise.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtects Your Ceiling from Stains:\u003c\/strong\u003e An integrated foam gasket ensures a tight seal against the ceiling, preventing dusty air leakage that causes ugly black smudges and marks around old registers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurprisingly Durable Construction:\u003c\/strong\u003e Don’t let its sleek look fool you. Built from \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003earchitectural-grade aluminum\u003c\/a\u003e\u003c\/span\u003e with reinforced welds, this vent cover is built to resist bending, cracking, and daily wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScratch-Resistant Matte Black Finish:\u003c\/strong\u003e Finished in a sophisticated matte black powder coat that is exceptionally resistant to chipping, corrosion, and fading, keeping it looking new for years.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless, No-Screw Look:\u003c\/strong\u003e Achieve a flawless, custom-looking installation. All mounting is handled discreetly on the inner edges, leaving the visible face completely clean and unbroken. (Fasteners not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTailor Your Comfort:\u003c\/strong\u003e For ultimate airflow control, easily pair this linear slot diffuser with a \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecustom plenum box\u003c\/a\u003e\u003c\/span\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e (sold separately) to perfectly match your system's output for any room.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Full dimensions of a black 8x4 inch 2-slot modern vent cover linear diffuser with 25mm openings for high airflow in commercial HVAC systems\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/modern-vent-cover-linear-slot-diffuser-high-flow-8x4-inch-2-slot-black-fulldimensions-flomatrix-hvac_480x480.png?v=1764463143\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Request a Quote for Linear Slot Diffusers\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/black-modern-vent-cover-bathroom-wall-installation-minimalist-hvac-register-flomatrix.jpg?v=1781811427\" alt=\"Luxury black wall vent cover installed in a modern spa-inspired bathroom, combining elegant architectural styling with efficient HVAC airflow performance.\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e47\u003cbr\u003e67\u003cbr\u003e87\u003cbr\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.06\u003cbr\u003e0.12\u003cbr\u003e0.20\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e35\u003cbr\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Contact Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\" title=\"High Resolution of Professional HVAC Diffusers vs Mass Produced Diffusers | Quality Comparison Guide\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/CASA_Linear_Slot_Diffusers_-_2_Slots_Submittal_Sheet.pdf?v=1746658237\" title=\"CASA Linear Slot Diffusers - 2 Slots Submittal Sheet High Resolution Download\" rel=\"noopener\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-2-slot-CASA-installation-submittal-flomatrix-hvac.jpg?v=1745277568\" alt=\"Linear slot diffuser high flow 2-slot CASA installation submittal\"\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eWhy a Commercial Grade Vent Cover is a Smart Upgrade for Your Home\u003c\/h4\u003e\n\u003cp\u003eThinking about commercial grade vent covers for your house might seem like overkill, but it's actually one of the smartest home improvement upgrades you can make for your HVAC system. While standard AC vent covers are designed to be basic, commercial-grade options are built for superior performance and long-term value, directly benefiting your home comfort.\u003c\/p\u003e\n\u003cp\u003eThe most immediate advantage is their exceptional durability. Crafted from robust materials like architectural-grade aluminum, these linear slot diffusers are engineered to withstand daily life without bending, cracking, or showing wear. This makes them a lasting investment that outperforms standard models year after year.\u003c\/p\u003e\n\u003cp\u003eYou'll also notice a much quieter home environment. Thanks to their precision engineering, these vent covers allow your HVAC system to operate efficiently with significantly reduced noise. They minimize that disruptive whistling and rushing air sound, promoting peaceful and effective airflow in every room.\u003c\/p\u003e\n\u003cp\u003eChoosing a commercial-grade product isn't excessive—it's a practical choice for homeowners who want lasting quality, enhanced indoor air quality, and a more comfortable living space. It’s about investing in better performance and value for your home.\u003c\/p\u003e\n\u003cp\u003eWe've specialized in manufacturing these high-performance solutions since 1997. If you're looking to upgrade your HVAC components, \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Us Form - Flo-Matrix HVAC\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eour team is here to help you\u003c\/a\u003e\u003c\/span\u003e find the perfect fit.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cu\u003eShowcase Video of Product - CASA Series Modern AC Vent Covers\u003c\/u\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/wcXlDlqBZeY?si=4-Z83FrdWgw0k3aS\" height=\"315\" width=\"560\" style=\"font-size: 0.875rem;\"\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":43447638229155,"sku":"FWASD25-2\/125W\/231L\/005","price":34.93,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/modern-vent-cover-linear-slot-diffuser-high-flow-8x4-inch-2-slot-black-frontview-flomatrix-hvac.jpg?v=1764463160"},{"product_id":"12-linear-slot-diffuser-hvac-air-vent-cover-2-slots-with-19mm-slot-openings-matte-black-finish-wasd19-2","title":"12\" Linear Slot Diffuser Vent Cover (2 Slots with 19mm Openings) - Matte Black - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThe 12-inch linear slot diffuser delivers both form and function with its matte black finish and heavy-duty extruded aluminum build. Designed for architects and HVAC pros, this dual-slot model moves more air than single-slot versions while maintaining precise control via 19mm adjustable blades (up to a 180° air pattern). Perfect for VAV systems and general airflow in commercial or residential spaces, it combines architectural-grade durability with optimized performance. Check our smoke test video to see it in action in the videos section. \u003cstrong\u003eProfessional installation recommended for best results.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Design \u0026amp; Fit:\u003c\/strong\u003e With a 12\" x 3¼\" nominal size, this linear slot diffuser features two crisp, ¾\" openings for a sharp, modern look that seamlessly integrates into any ceiling. (\u003cem\u003eCheck the size diagram for exact measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrevents Ceiling Smudges \u0026amp; Stains:\u003c\/strong\u003e A built-in gasket creates an airtight seal against the ceiling. This stops air leakage, protects your ceiling from dust marks, and ensures airflow is directed perfectly through the slotted vent covers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty \u0026amp; Built to Last:\u003c\/strong\u003e : Constructed from commercial-grade \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e. It's reinforced with Tig welds to prevent cracking, chipping, or bending, guaranteeing a lifetime of reliable performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Matte Black Finish:\u003c\/strong\u003e Features a sleek, matte black powder coat finish. This is not only for its modern appeal but also for its exceptional resistance to corrosion, scuffs, and daily wear and tear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSleek, No-Visible-Screw Design:\u003c\/strong\u003e Achieve a clean, minimalist installation with no screws showing on the face of the register. All fastening points are cleverly hidden on the inner sides for a flawless finish. (Please note: fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTailor Your Airflow:\u003c\/strong\u003e For ultimate control, easily pair this unit with a \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" target=\"_blank\"\u003ecustom plenum box\u003c\/a\u003e\u003c\/span\u003e (sold separately) to fine-tune performance for any HVAC system. See our video guide to learn more about plenum options.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-12-inch-2-slot-black-fulldimensions-flomatrix-hvac.jpg?v=1745266458\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Request a Quote for Linear Slot Diffusers\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/double-linear-slot-diffuser-black-installed-commercial-hvac.jpg?v=1780957985\" alt=\"Double linear slot diffuser in black finish installed in a ceiling HVAC system, providing modern architectural air distribution for commercial buildings, offices, hotels, retail spaces, and custom residential homes.\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e64\u003cbr\u003e93\u003cbr\u003e125\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.09\u003cbr\u003e0.18\u003cbr\u003e0.31\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e40\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Flo-Matrix HVAC\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/span\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser - 25mm wide openings - 2 Slots Vent Covers\" href=\"https:\/\/www.linearairdiffusers.com\/collections\/linear-slot-diffuser-double-slots-with-25mm-wide-slot-opening\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003eNeed more airflow? See the enhanced airflow 2-slots diffuser\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"Why Flo-Matrix HVAC Linear Slot Diffusers Outperform Generic HVAC Vent Cover Suppliers\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser (two slots) Submittal Sheet High Resolution PDF Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_2-slot_submittal_high_resolution_download.pdf?v=1750374563\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-2-slot-submittal-flomatrix-hvac.jpg?v=1745266458\" alt=\"Linear Slot Diffuser -2-slot submittal\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003ch5\u003e\u003cbr\u003e\u003c\/h5\u003e\n\u003ch5\u003e\u003cbr\u003e\u003c\/h5\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Key Characteristics of Commercial-Grade Air Distribution Products\u003c\/h4\u003e\n\u003cp\u003eCommercial-grade grilles, registers, and diffusers are defined by one crucial element: complete and accurate technical data. This information empowers architects, engineers, and HVAC contractors to make informed decisions, providing clear details on material grades and comprehensive performance specifications like noise levels (NC), airflow capacity, and pressure drop.\u003c\/p\u003e\n\u003cp\u003eWe ensure our products meet this high bar through rigorous testing in accordance with ASHRAE 70-2006 and ADC1062:GRD-84. Our development process harnesses the power of \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e to innovate and improve, resulting in designs that maximize energy efficiency and airflow control.\u003c\/p\u003e\n\u003cp\u003eWe have manufactured premium linear slot diffusers (1-12 slot options) for the commercial HVAC industry since 1997. For personalized guidance tailored to your project’s needs, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Us Form - Flo-Matrix HVAC\" rel=\"noopener\" target=\"_blank\"\u003econtact our product specialists\u003c\/a\u003e\u003c\/span\u003e at +1-604-437-1527.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\n\u003cspan style=\"text-decoration: underline;\"\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/h4\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":43449039880355,"sku":"FWASD19-2\/114.5W\/333L\/005","price":41.7,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-12-inch-2-slot-black-frontview-flomatrix-hvac.png?v=1745266458"},{"product_id":"36-linear-slot-diffuser-hvac-air-vent-cover-2-slots-with-19mm-slot-openings-matte-black-finish-wasd19-2","title":"36\" Linear Slot Diffuser Vent Cover (2 Slots with 19mm Openings) - Matte Black - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThe 36-inch linear slot diffuser delivers both form and function with its matte black finish and heavy-duty extruded aluminum build. Designed for architects and HVAC pros, this dual-slot model moves more air than single-slot versions while maintaining precise control via 19mm adjustable blades (up to a 180° air pattern). Perfect for VAV systems and general airflow in commercial or residential spaces, it combines architectural-grade durability with optimized performance. Check our smoke test video to see it in action in the videos section. \u003cstrong\u003eProfessional installation recommended for best results.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Design \u0026amp; Fit:\u003c\/strong\u003e With a 36\" x 3¼\" nominal size, this linear slot diffuser features two crisp, ¾\" openings for a sharp, modern look that seamlessly integrates into any ceiling. (\u003cem\u003eCheck the size diagram for exact measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrevents Ceiling Smudges \u0026amp; Stains:\u003c\/strong\u003e A built-in gasket creates an airtight seal against the ceiling. This stops air leakage, protects your ceiling from dust marks, and ensures airflow is directed perfectly through the slotted vent covers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty \u0026amp; Built to Last:\u003c\/strong\u003e : Constructed from commercial-grade\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e. It's reinforced with Tig welds to prevent cracking, chipping, or bending, guaranteeing a lifetime of reliable performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Matte Black Finish:\u003c\/strong\u003e Features a sleek, matte black powder coat finish. This is not only for its modern appeal but also for its exceptional resistance to corrosion, scuffs, and daily wear and tear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSleek, No-Visible-Screw Design:\u003c\/strong\u003e Achieve a clean, minimalist installation with no screws showing on the face of the register. All fastening points are cleverly hidden on the inner sides for a flawless finish. (Please note: fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTailor Your Airflow:\u003c\/strong\u003e For ultimate control, easily pair this unit with a \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" target=\"_blank\"\u003ecustom plenum box\u003c\/a\u003e\u003c\/span\u003e (sold separately) to fine-tune performance for any HVAC system. See our video guide to learn more about plenum options.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-36-inch-2-slot-black-fulldimensions-flomatrix-hvac.jpg?v=1745273984\" alt=\"Full dimensions of a black 36-inch 2-slot linear diffuser with 19mm openings for precision airflow in commercial HVAC systems\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" title=\"Request a Quote for Linear Slot Diffusers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/double-linear-slot-diffuser-black-installed-commercial-hvac.jpg?v=1780957985\" alt=\"Double linear slot diffuser in black finish installed in a ceiling HVAC system, providing modern architectural air distribution for commercial buildings, offices, hotels, retail spaces, and custom residential homes.\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e192\u003cbr\u003e281\u003cbr\u003e375\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.09\u003cbr\u003e0.18\u003cbr\u003e0.31\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e40\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\" style=\"height: 58.7812px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 58.7812px;\"\u003e\n\u003ctd style=\"height: 58.7812px;\"\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Contact Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/span\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/collections\/linear-slot-diffuser-double-slots-with-25mm-wide-slot-opening\" title=\"Linear Slot Diffuser - 25mm wide openings - 2 Slots Vent Covers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #2596be;\"\u003eNeed more airflow? See the enhanced airflow 2-slots diffuser\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/fwasd19-2-vs-fwasd25-2-linear-slot-diffuser-comparison-commercial-hvac_resized.png?v=1780964738\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/fwasd19-2-vs-fwasd25-2-linear-slot-diffuser-comparison-commercial-hvac_resized.png?v=1780964738\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"Why Flo-Matrix HVAC Linear Slot Diffusers Outperform Generic HVAC Vent Cover Suppliers\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser (two slots) Submittal Sheet High Resolution PDF Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_2-slot_submittal_high_resolution_download.pdf?v=1750374563\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-2-slot-submittal-flomatrix-hvac_147063a2-0565-40da-bfea-73d67ce336ea.jpg?v=1745272099\" alt=\"Linear Slot Diffuser -2-slot submittal\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Key Characteristics of Commercial-Grade Air Distribution Products\u003c\/h4\u003e\n\u003cp\u003eCommercial-grade grilles, registers, and diffusers are defined by one crucial element: complete and accurate technical data. This information empowers architects, engineers, and HVAC contractors to make informed decisions, providing clear details on material grades and comprehensive performance specifications like noise levels (NC), airflow capacity, and pressure drop.\u003c\/p\u003e\n\u003cp\u003eWe ensure our products meet this high bar through rigorous testing in accordance with ASHRAE 70-2006 and ADC1062:GRD-84. Our development process harnesses the power of \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e to innovate and improve, resulting in designs that maximize energy efficiency and airflow control.\u003c\/p\u003e\n\u003cp\u003eWe have manufactured premium linear slot diffusers (1-12 slot options) for the commercial HVAC industry since 1997. For personalized guidance tailored to your project’s needs, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Us Form - Flo-Matrix HVAC\" rel=\"noopener\" target=\"_blank\"\u003econtact our product specialists\u003c\/a\u003e\u003c\/span\u003e\u003ca rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003e\u003c\/a\u003e at +1-604-437-1527.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":43450114539683,"sku":"FWASD19-2\/114.5W\/942L\/005","price":88.46,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-36-inch-2-slot-black-frontview-flomatrix-hvac.png?v=1745877460"},{"product_id":"14x4-linear-slot-diffuser-matte-white-casa-series-hvac-modern-air-vent-cover-wasd25-2","title":"14x4\" Linear Slot Diffuser - CASA Series Modern Vent Cover - Matte White - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003eThis 14x4 inch linear slot diffuser in a chic white offers the ultimate upgrade for your home's airflow—seamlessly replacing standard vent covers with a sleek, modern look. Unlike flimsy alternatives, our heavy-duty extruded aluminum construction resists cracking during installation, eliminating frustrating breaks. The rich powder-coated finish adds durability while integrated weather stripping prevents ceiling smudges (a game-changer for hard-to-reach ceiling installations!).\u003c\/p\u003e\n\u003cp\u003eThese precision-engineered diffusers feature 25mm slots with 180° adjustable blades, offering two-way airflow control for customized comfort. Perfect for both residential and professional VAV systems, they combine architectural-grade performance with hassle-free installation—designed as direct replacements for old vent covers. \u003cstrong\u003eFor flawless results and optimal airflow, professional installation is recommended.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cbr\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eA Perfect Fit for Your Home:\u003c\/strong\u003e With its standard 14x4\" size, our CASA Series is the ideal, hassle-free retrofit upgrade to replace old, bulky vent covers with a sleek, modern linear slot diffuser. \u003cem\u003ePlease see the diagram for precise measurements.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean \u0026amp; Modern Residential Design:\u003c\/strong\u003e This vent cover features a crisp, minimalist profile with a defined 1-inch slot opening, designed to seamlessly complement any room's aesthetic without demanding costly renovation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior, Quiet Airflow:\u003c\/strong\u003e The engineered 1-inch slot allows a higher volume of air to pass through more efficiently than traditional 19mm AC vent covers, improving your HVAC system's performance without added noise.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtects Your Ceiling from Stains:\u003c\/strong\u003e An integrated foam gasket ensures a tight seal against the ceiling, preventing dusty air leakage that causes ugly black smudges and marks around old registers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurprisingly Durable Construction:\u003c\/strong\u003e Don’t let its sleek look fool you. Built from \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003earchitectural-grade aluminum\u003c\/a\u003e\u003c\/span\u003e with reinforced welds, this vent cover is built to resist bending, cracking, and daily wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrong White Matte Finish:\u003c\/strong\u003e Renowned for its toughness, this matte white powder coat provides exceptional protection from scratches, resists corrosion, and maintains its color without fading.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless, No-Screw Look:\u003c\/strong\u003e Achieve a flawless, custom-looking installation. All mounting is handled discreetly on the inner edges, leaving the visible face completely clean and unbroken. (Fasteners not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTailor Your Comfort:\u003c\/strong\u003e For ultimate airflow control, easily pair this linear slot diffuser with a \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecustom plenum box\u003c\/a\u003e\u003c\/span\u003e (sold separately) to perfectly match your system's output for any room.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg style=\"float: none;\" alt=\"Full dimensions of a white 14x4 inch 2-slot modern vent cover linear diffuser with 25mm openings for high airflow in commercial HVAC systems\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/modern-vent-cover-linear-slot-diffuser-high-flow-14x4-inch-2-slot-white-fulldimensions-flomatrix-hvac_480x480.png?v=1764464653\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: start;\"\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Request a Quote for Linear Slot Diffusers\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/div\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Modern CASA white linear slot air diffuser mounted on wall, high-performance HVAC ventilation solution for homes, offices, and commercial spaces.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_-CASA_White_high_airflow_Installed_Photo.jpg?v=1780433378\"\u003e\u003c\/div\u003e\n\u003ch5\u003e\u003cbr\u003e\u003c\/h5\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e78\u003cbr\u003e111\u003cbr\u003e146\u003cbr\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.06\u003cbr\u003e0.12\u003cbr\u003e0.20\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e35\u003cbr\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable style=\"height: 58.7812px;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 58.7812px;\"\u003e\n\u003ctd style=\"height: 58.7812px;\"\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Contact Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\" title=\"High Resolution of Professional HVAC Diffusers vs Mass Produced Diffusers | Quality Comparison Guide\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/CASA_Linear_Slot_Diffusers_-_2_Slots_Submittal_Sheet.pdf?v=1746658237\" title=\"CASA Linear Slot Diffusers - 2 Slots Submittal Sheet High Resolution Download\" rel=\"noopener\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-2-slot-CASA-installation-submittal-flomatrix-hvac.jpg?v=1745354511\" alt=\"Linear slot diffuser high flow 2-slot CASA installation submittal\"\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eWhy a Commercial Grade Vent Cover is a Smart Upgrade for Your Home\u003c\/h4\u003e\n\u003cp\u003eThinking about commercial grade vent covers for your house might seem like overkill, but it's actually one of the smartest home improvement upgrades you can make for your HVAC system. While standard AC vent covers are designed to be basic, commercial-grade options are built for superior performance and long-term value, directly benefiting your home comfort.\u003c\/p\u003e\n\u003cp\u003eThe most immediate advantage is their exceptional durability. Crafted from robust materials like architectural-grade aluminum, these linear slot diffusers are engineered to withstand daily life without bending, cracking, or showing wear. This makes them a lasting investment that outperforms standard models year after year.\u003c\/p\u003e\n\u003cp\u003eYou'll also notice a much quieter home environment. Thanks to their precision engineering, these vent covers allow your HVAC system to operate efficiently with significantly reduced noise. They minimize that disruptive whistling and rushing air sound, promoting peaceful and effective airflow in every room.\u003c\/p\u003e\n\u003cp\u003eChoosing a commercial-grade product isn't excessive—it's a practical choice for homeowners who want lasting quality, enhanced indoor air quality, and a more comfortable living space. It’s about investing in better performance and value for your home.\u003c\/p\u003e\n\u003cp\u003eWe've specialized in manufacturing these high-performance solutions since 1997. If you're looking to upgrade your HVAC components, \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Us Form - Flo-Matrix HVAC\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eour team is here to help you\u003c\/a\u003e\u003c\/span\u003e find the perfect fit.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cu\u003eShowcase Video of Product - CASA Series Modern AC Vent Covers\u003c\/u\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/wcXlDlqBZeY?si=4-Z83FrdWgw0k3aS\" height=\"315\" width=\"560\" style=\"font-size: 0.875rem;\"\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":43462825705635,"sku":"FWASD25-2\/125W\/383L\/PCWS02","price":46.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/modern-vent-cover-linear-slot-diffuser-high-flow-14x4-inch-2-slot-white-frontview-flomatrix-hvac.png?v=1764464670"},{"product_id":"14x4-linear-slot-diffuser-matte-black-casa-series-hvac-modern-air-vent-cover-wasd25-2","title":"14x4\" Linear Slot Diffuser - CASA Series Modern Vent Cover - Matte Black - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003eThis 14x4 inch linear slot diffuser in matte black offers the ultimate upgrade for your home's airflow—seamlessly replacing standard vent covers with a sleek, modern look. Unlike flimsy alternatives, our heavy-duty extruded aluminum construction resists cracking during installation, eliminating frustrating breaks. The rich powder-coated finish adds durability while integrated weather stripping prevents ceiling smudges (a game-changer for hard-to-reach ceiling installations!).\u003c\/p\u003e\n\u003cp\u003eThese precision-engineered diffusers feature 25mm slots with 180° adjustable blades, offering two-way airflow control for customized comfort. Perfect for both residential and professional VAV systems, they combine architectural-grade performance with hassle-free installation—designed as direct replacements for old vent covers. \u003cstrong\u003eFor flawless results and optimal airflow, professional installation is recommended.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cbr\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eA Perfect Fit for Your Home:\u003c\/strong\u003e With its standard 14x4\" size, our CASA Series is the ideal, hassle-free retrofit upgrade to replace old, bulky vent covers with a sleek, modern linear slot diffuser. \u003cem\u003ePlease see the diagram for precise measurements.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean \u0026amp; Modern Residential Design:\u003c\/strong\u003e This vent cover features a crisp, minimalist profile with a defined 1-inch slot opening, designed to seamlessly complement any room's aesthetic without demanding costly renovation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior, Quiet Airflow:\u003c\/strong\u003e The engineered 1-inch slot allows a higher volume of air to pass through more efficiently than traditional 19mm AC vent covers, improving your HVAC system's performance without added noise.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtects Your Ceiling from Stains:\u003c\/strong\u003e An integrated foam gasket ensures a tight seal against the ceiling, preventing dusty air leakage that causes ugly black smudges and marks around old registers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurprisingly Durable Construction:\u003c\/strong\u003e Don’t let its sleek look fool you. Built from \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003earchitectural-grade aluminum\u003c\/a\u003e\u003c\/span\u003e with reinforced welds, this vent cover is built to resist bending, cracking, and daily wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScratch-Resistant Matte Black Finish:\u003c\/strong\u003e Finished in a sophisticated matte black powder coat that is exceptionally resistant to chipping, corrosion, and fading, keeping it looking new for years.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless, No-Screw Look:\u003c\/strong\u003e Achieve a flawless, custom-looking installation. All mounting is handled discreetly on the inner edges, leaving the visible face completely clean and unbroken. (Fasteners not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTailor Your Comfort:\u003c\/strong\u003e For ultimate airflow control, easily pair this linear slot diffuser with a \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" rel=\"noopener\" target=\"_blank\"\u003ecustom plenum box\u003c\/a\u003e\u003c\/span\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e (sold separately) to perfectly match your system's output for any room.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-14x4-inch-2-slot-black-fulldimensions-flomatrix-hvac.png?v=1745353930\" alt=\"Full dimensions of a black 14x4 inch 2-slot linear diffuser with 25mm openings for high airflow in commercial HVAC systems\"\u003e\u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" title=\"Request a Quote for Linear Slot Diffusers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/black-modern-vent-cover-bathroom-wall-installation-minimalist-hvac-register-flomatrix.jpg?v=1781811427\" alt=\"Luxury black wall vent cover installed in a modern spa-inspired bathroom, combining elegant architectural styling with efficient HVAC airflow performance.\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e78\u003cbr\u003e111\u003cbr\u003e146\u003cbr\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.06\u003cbr\u003e0.12\u003cbr\u003e0.20\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e35\u003cbr\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Flo-Matrix HVAC\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\" title=\"High Resolution of Professional HVAC Diffusers vs Mass Produced Diffusers | Quality Comparison Guide\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" title=\"CASA Linear Slot Diffusers - 2 Slots Submittal Sheet High Resolution Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/CASA_Linear_Slot_Diffusers_-_2_Slots_Submittal_Sheet.pdf?v=1746658237\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-2-slot-CASA-installation-submittal-flomatrix-hvac.jpg?v=1745353927\" alt=\"Linear slot diffuser high flow 2-slot CASA installation submittal\"\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eWhy a Commercial Grade Vent Cover is a Smart Upgrade for Your Home\u003c\/h4\u003e\n\u003cp\u003eThinking about commercial grade vent covers for your house might seem like overkill, but it's actually one of the smartest home improvement upgrades you can make for your HVAC system. While standard AC vent covers are designed to be basic, commercial-grade options are built for superior performance and long-term value, directly benefiting your home comfort.\u003c\/p\u003e\n\u003cp\u003eThe most immediate advantage is their exceptional durability. Crafted from robust materials like architectural-grade aluminum, these linear slot diffusers are engineered to withstand daily life without bending, cracking, or showing wear. This makes them a lasting investment that outperforms standard models year after year.\u003c\/p\u003e\n\u003cp\u003eYou'll also notice a much quieter home environment. Thanks to their precision engineering, these vent covers allow your HVAC system to operate efficiently with significantly reduced noise. They minimize that disruptive whistling and rushing air sound, promoting peaceful and effective airflow in every room.\u003c\/p\u003e\n\u003cp\u003eChoosing a commercial-grade product isn't excessive—it's a practical choice for homeowners who want lasting quality, enhanced indoor air quality, and a more comfortable living space. It’s about investing in better performance and value for your home.\u003c\/p\u003e\n\u003cp\u003eWe've specialized in manufacturing these high-performance solutions since 1997. If you're looking to upgrade your HVAC components, \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003eour team is here to help you\u003c\/a\u003e\u003c\/span\u003e find the perfect fit.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cu\u003eShowcase Video of Product - CASA Series Modern AC Vent Covers\u003c\/u\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/wcXlDlqBZeY?si=4-Z83FrdWgw0k3aS\" height=\"315\" width=\"560\" style=\"font-size: 0.875rem;\"\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":43462850117795,"sku":"FWASD25-2\/125W\/383L\/005","price":46.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-14x4-inch-2-slot-black-frontview-flomatrix-hvac.jpg?v=1745359325"},{"product_id":"60-linear-slot-diffuser-hvac-air-vent-cover-2-slots-with-25mm-slot-openings-matte-white-finish-wasd25-2","title":"60\" Linear Slot Diffuser Vent Cover (2 Slots with 25mm Openings) - Matte White - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThe 60-inch linear slot diffuser delivers superior airflow with its sleek white finish and architectural-grade aluminum construction. Featuring dual 25mm slots with 180° adjustable blades, it provides 17% greater airflow than our standard two-slot 19mm models while reducing static pressure by 33%—optimizing HVAC efficiency without straining ductwork. Verified lab results confirm its performance for flow rate, noise levels, and pressure in the performance section. See our smoke test video to observe the precise air distribution in action. \u003cstrong\u003eProfessional installation recommended for optimal results.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean, Modern Design:\u003c\/strong\u003e With a 60\" x 3½\" nominal size, this linear slot diffuser is engineered with two sharp, 1-inch openings for a minimalist look that complements any commercial or residential space. (\u003cem\u003ePlease see the diagram for precise measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Velocity Airflow Performance:\u003c\/strong\u003e The wider 1-inch slot is a major upgrade from standard 19mm vent covers, enabling a significantly higher volume of air to move through quietly and efficiently for demanding HVAC systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEliminates Ceiling Dust Marks:\u003c\/strong\u003e An integrated gasket creates a perfect seal against the ceiling tile, preventing leaked air from causing unsightly smudges and ensuring all conditioned air is delivered into the room.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged Commercial Construction:\u003c\/strong\u003e Built from heavy-gauge \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e and fortified with robust Tig welds to withstand the rigors of daily use in any environment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrong Matte White Surface: \u003c\/strong\u003eFeatures a sophisticated matte white powder coat that is not only elegant but also remarkably resistant to wear, including scratches, corrosion, and fading.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless No-Screw Aesthetic:\u003c\/strong\u003e Achieve a flawless, uninterrupted look with a design that hides all mounting hardware on the interior edges for a clean install. (Note: Fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimize Your Air Distribution:\u003c\/strong\u003e For peak HVAC efficiency, pair this air diffuser with an \u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003ecustom plenum box\u003c\/span\u003e\u003c\/a\u003e (sold separately) to perfectly balance airflow. Check out our video to learn more.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" title=\"Request a Quote for Linear Slot Diffusers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" alt=\"White double linear slot diffuser (high airflow) installed on the wall for modern HVAC air distribution and clean architectural design\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Double_Linear_Slot_Diffuser_White_Medium_high_airflow_Installed_Photo.jpg?v=1780433270\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e343\u003cbr\u003e531\u003cbr\u003e625\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.06\u003cbr\u003e0.15\u003cbr\u003e0.20\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e35\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Contact Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"What Makes Flo-Matrix HVAC the Preferred Choice for Linear Slot Diffusers\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser_high_flow_two-slot_submittal_high_resolution_download.pdf?v=1750376288\" title=\"Linear Slot Diffuser high flow (two slots) Submittal Sheet High Resolution PDF Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-2-slot-submittal-flomatrix-hvac.jpg?v=1745454936\" alt=\"Linear Slot Diffuser high airflow 2-slot submittal\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Engineer's Standard for Commercial HVAC Grilles and Diffusers\u003c\/h4\u003e\n\u003cp\u003eIn professional HVAC design, \"commercial grade\" is a promise of performance, backed by data. It provides the detailed technical information—from the composition to certified metrics on NC (noise criteria), flow rates, and pressure drop—that engineers rely on for precise specification and predictable results.\u003c\/p\u003e\n\u003cp\u003eWe uphold this promise by subjecting our products to testing aligned with ASHRAE Standard 70-2006 and ADC1062:GRD-84. Our design philosophy leverages \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e to continuously innovate, creating energy-efficient solutions that meet the highest standards of modern building design.\u003c\/p\u003e\n\u003cp\u003eFor over two decades, since 1997, we have specialized in manufacturing high-performance linear slot diffusers (1-12 slots) for commercial applications. \u003cspan style=\"color: rgb(111, 160, 177);\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Contact Us Form - Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003eContact our product specialists\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e at +1-604-437-1527 for expert consultation on your next project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":43830842163363,"sku":"FWASD25-2\/125W\/1552L\/PCWS02","price":149.53,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-60-inch-2-slot-white-frontview-flomatrix-hvac.png?v=1745454936"},{"product_id":"72-linear-slot-diffuser-vent-cover-2-slots-highflow-black-hvac","title":"72\" Linear Slot Diffuser Vent Cover (2 Slots with 25mm Openings) - Matte Black - FLO-MATRIX HVAC","description":"\u003ch5\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eThis 72-inch linear slot diffuser in matte black combines durability and performance with its architectural-grade extruded aluminum construction. Perfect for VAV systems and general air distribution, its dual 25mm slots with 180° adjustable blades boost airflow by 17% over our 19mm two-slot models while reducing static pressure by 33%—enhancing AC efficiency without taxing ductwork. Lab-tested performance data (flow rate, noise, and pressure) is available to ensure system compatibility. See our smoke test video for airflow demonstration. \u003c\/span\u003e\u003cstrong\u003eProfessional installation recommended.\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean, Modern Design:\u003c\/strong\u003e With a 72\" x 3½\" nominal size, this linear slot diffuser is engineered with two sharp, 1-inch openings for a minimalist look that complements any commercial or residential space. (\u003cem\u003ePlease see the diagram for precise measurements\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Velocity Airflow Performance:\u003c\/strong\u003e The wider 1-inch slot is a major upgrade from standard 19mm vent covers, enabling a significantly higher volume of air to move through quietly and efficiently for demanding HVAC systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEliminates Ceiling Dust Marks:\u003c\/strong\u003e An integrated gasket creates a perfect seal against the ceiling tile, preventing leaked air from causing unsightly smudges and ensuring all conditioned air is delivered into the room.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged Commercial Construction:\u003c\/strong\u003e Built from heavy-gauge \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003e6063-T5 aluminum\u003c\/a\u003e\u003c\/span\u003e and fortified with robust Tig welds to withstand the rigors of daily use in any environment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Matte Black Finish:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFeatures a sophisticated matte black powder coat that is highly resistant to scratches, corrosion, and daily wear, ensuring it looks pristine for years to come.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless No-Screw Aesthetic:\u003c\/strong\u003e Achieve a flawless, uninterrupted look with a design that hides all mounting hardware on the interior edges for a clean install. (Note: Fasteners are not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimize Your Air Distribution:\u003c\/strong\u003e For peak HVAC efficiency, pair this air diffuser with an \u003ca rel=\"noopener\" title=\"Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/custom-hvac-plenums\" target=\"_blank\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003ecustom plenum box\u003c\/span\u003e\u003c\/a\u003e (sold separately) to perfectly balance airflow. Check out our video to learn more.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips worldwide from our Vancouver, Canada facility. Local pickup is also available at our showroom.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNeed custom sizes?\u003cstrong\u003e \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/linear-slot-diffuser-quote-request\" title=\"Request a Quote for Linear Slot Diffusers\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eRequest a quote for custom linear slot diffusers and plenums\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to get pricing, lead times, and support for your project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/double-linear-slot-diffuser-high-flow-black-installed-commercial-hvac.jpg?v=1781044844\" alt=\"Black double linear slot diffuser installed in residential HVAC ceiling, providing high airflow and modern architectural air distribution.\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003ePerformance\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 204.035px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003ePerformance Data\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; height: 19px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; height: 19px;\"\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 40px;\"\u003e\n\u003cp\u003e\u003cem\u003eFlow Rate\u003c\/em\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003e(CFM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 40px;\"\u003e\u003cem\u003e Static Pressure (in.wg)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 40px;\"\u003e\u003cem\u003eNoise Level (NC)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.3578px;\"\u003e\n\u003ctd style=\"width: 204.035px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e412\u003cbr\u003e637\u003cbr\u003e750\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125.965px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e0.06\u003cbr\u003e0.15\u003cbr\u003e0.20\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 157px; text-align: center; height: 59.3578px;\"\u003e\n\u003cp\u003e20\u003cbr\u003e30\u003cbr\u003e35\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e  * Flow rate (CFM) and static pressure (in.wg) are interrelated. It is crucial to know your HVAC system total or static pressure when choosing the proper GRD for optimal performance.\u003c\/p\u003e\n\u003cp\u003e* Performance data independently verified by a globally recognized third-party testing facility. Tested to ADC1062:GRD-84 and ASHRAE 70-2006 standards. CFD and modern testing ensure optimal performance and energy efficiency. For complete performance data, please \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Contact Flo-Matrix HVAC\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Commercial HVAC 2-slot linear slot diffuser comparison between FWASD19-2 and FWASD25-2 featuring 3\/4 inch and 1 inch slot widths, airflow efficiency improvements, reduced pressure loss, noise performance benefits, showroom demonstration availability, and applications for commercial buildings, hospitality projects, healthcare facilities, and custom residential homes.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"High Resolution of Comparison Table for Flo-Matrix HVAC Models FWASD19-2 VS. FWASD25-2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/commercial-linear-slot-diffuser-airflow-comparison-2-slot.png?v=1780955067\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781739881\" alt=\"Flo-Matrix HVAC vent cover with built-in weather foam strip compared to standard vent covers without foam gasket, showing improved air seal, reduced dust streaks, cleaner ceilings, better airflow efficiency, and lower maintenance requirements for residential and commercial HVAC applications.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/flo-matrix-hvac-weather-foam-strip-vent-cover-comparison-cleaner-ceilings-air-seal-performance-poster_jpg.jpg?v=1781729213\" title=\"Flo-Matrix HVAC Weather Foam Strip Vent Cover Comparison – Cleaner Ceilings, Better Air Seal \u0026amp; Improved HVAC Performance\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison_2.png?v=1780964847\" title=\"What Makes Flo-Matrix HVAC the Preferred Choice for Linear Slot Diffusers\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Flo-Matrix HVAC professional-grade linear slot diffusers and air grilles compared to mass-produced generic store diffusers, highlighting T5 aluminum construction, superior airflow performance, expert technical support, custom manufacturing options, commercial project experience, showroom availability, and long-term HVAC performance benefits.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/professional-vs-mass-produced-hvac-diffusers-air-grilles-comparison.png?v=1780707295\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSubmittal\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" title=\"Linear Slot Diffuser high flow (two slots) Submittal Sheet High Resolution PDF Download\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser_high_flow_two-slot_submittal_high_resolution_download.pdf?v=1750376288\" target=\"_blank\"\u003eClick here to download a high resolution of this submittal sheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-2-slot-submittal-flomatrix-hvac.jpg?v=1745455123\" alt=\"Linear Slot Diffuser high airflow 2-slot submittal\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/Linear_Slot_Diffuser_Installation_Instructions_High_Resolution.pdf?v=1759781403\" title=\"Linear Slot Diffuser Installation Guide High Resolution Download\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser Installation Guide Download\u003c\/a\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"19mm vs. 25mm Linear Slot Diffusers: A Quick Guide for HVAC Pros \u0026amp; Homeowners\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/19mm-vs-25mm-linear-slot-diffusers-a-quick-guide-for-hvac-pros-homeowners\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eOur Guide to 19mm VS. 25mm Slot Width Differences\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffusers-smart-choice-for-modern-hvac-systems\" target=\"_blank\"\u003eLinear Slot Diffusers: The Smart Choice for Modern HVAC Systems\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" title=\"Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\" href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/why-6063-t5-aluminum-is-great-for-linear-slot-diffuser-vent-covers\" target=\"_blank\"\u003eWhy 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/blogs\/hvac-diffusers-insights\/linear-slot-diffuser-upgrade-retrofit-vs-new-construction\" title=\"Linear Slot Diffuser Upgrade: A Guide for Retrofit vs. New Construction\" style=\"color: rgb(37, 150, 190);\" rel=\"noopener\" target=\"_blank\"\u003eLinear Slot Diffuser: A Guide for Retrofit vs. New Construction\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener noreferrer\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eCFD Airflow Analysis Services for Smarter HVAC Design\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eThe Engineer's Standard for Commercial HVAC Grilles and Diffusers\u003c\/h4\u003e\n\u003cp\u003eIn professional HVAC design, \"commercial grade\" is a promise of performance, backed by data. It provides the detailed technical information—from the composition to certified metrics on NC (noise criteria), flow rates, and pressure drop—that engineers rely on for precise specification and predictable results.\u003c\/p\u003e\n\u003cp\u003eWe uphold this promise by subjecting our products to testing aligned with ASHRAE Standard 70-2006 and ADC1062:GRD-84. Our design philosophy leverages \u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/cfd-airflow-analysis-hvac-design\" title=\"CFD Airflow Analysis Services for Smarter HVAC Design\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003ecomputational fluid dynamics (CFD)\u003c\/a\u003e\u003c\/span\u003e to continuously innovate, creating energy-efficient solutions that meet the highest standards of modern building design.\u003c\/p\u003e\n\u003cp\u003eFor over two decades, since 1997, we have specialized in manufacturing high-performance linear slot diffusers (1-12 slots) for commercial applications. \u003cspan style=\"color: rgb(111, 160, 177);\"\u003e\u003cspan style=\"color: rgb(37, 150, 190);\"\u003e\u003ca href=\"https:\/\/www.linearairdiffusers.com\/pages\/contact-us\" title=\"Contact Us Form - Flo-Matrix HVAC\" rel=\"noopener\" style=\"color: rgb(37, 150, 190);\" target=\"_blank\"\u003eContact our product specialists\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e at +1-604-437-1527 for expert consultation on your next project.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShowcase Video of Product - 2 Slots Linear Diffuser\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/CMAKNo9aeW4?si=kNKQg43GAw9laYz6\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLinear Slot Diffuser Smoke Test (Horizontal Throw) Video - 2 Slots\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/0Re7NqSIiCI\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVideos of previous custom plenums\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/5kEmsTcA2uE?si=uSyGJ5y7poRtPLxT\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/gqC7IVD_kbY?si=araziY9knWlseHoy\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOur retail store showroom - Greater Vancouver, Canada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/YeWxWnvc0pw?si=qV2UAJzkCEX6TARr\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linear Air Diffusers","offers":[{"title":"Default Title","offer_id":46344403288227,"sku":"FWASD25-2\/125W\/1857L\/005","price":178.91,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/files\/linear-slot-diffuser-high-flow-72-inch-2-slot-black-frontview.jpg?v=1759965344"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/9515\/0755\/collections\/linear-slot-diffuser-24-inch-2-slot-white-sideview-flomatrix-hvac.png?v=1786040752","url":"https:\/\/www.linearairdiffusers.com\/collections\/double-slot-linear-diffusers.oembed?page=2","provider":"Linear Air Diffusers by Flo-Matrix HVAC","version":"1.0","type":"link"}