Details
This 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!).
These 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.
- A Perfect Fit for Your Home: 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. Please see the diagram for precise measurements.
- Clean & Modern Residential Design: 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.
- Superior, Quiet Airflow: 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.
- Protects Your Ceiling from Stains: 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.
- Surprisingly Durable Construction: Don’t let its sleek look fool you. Built from architectural-grade aluminum with reinforced welds, this vent cover is built to resist bending, cracking, and daily wear.
- Strong White Matte Finish: Renowned for its toughness, this matte white powder coat provides exceptional protection from scratches, resists corrosion, and maintains its color without fading.
- Seamless, No-Screw Look: 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).
- Tailor Your Comfort: For ultimate airflow control, easily pair this linear slot diffuser with a custom plenum box (sold separately) to perfectly match your system's output for any room.
- Quick Shipping from Our Warehouse: We ship from Vancouver, Canada. Most customers in the USA receive their retrofit vent covers within 2-7 business days.
Performance
| Performance Data | ||
|
Flow Rate (CFM) |
Static Pressure (in.wg) | Noise Level (NC) |
|
47 |
0.06 |
20 |
| * 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. |
Submittal
Click here to download a high resolution of this submittal sheet
Resources
Our Guide to 19mm VS. 25mm Slot Width Differences
Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems
Why 6063-T5 Aluminum is the Gold Standard for Your Linear Slot Diffuser
CFD Airflow Analysis Services for Smarter HVAC Design
Why a Commercial Grade Vent Cover is a Smart Upgrade for Your Home
Thinking 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.
The 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.
You'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.
Choosing 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.
We've specialized in manufacturing these high-performance solutions since 1997. If you're looking to upgrade your HVAC components, our team is here to help you find the perfect fit.
Videos
Showcase Video of Product - CASA Series Modern AC Vent Covers
Videos of previous custom plenums
Our retail store showroom - Greater Vancouver, Canada
Let customers speak for us
We have used these on several jobs and are extremely pleased with the way they Proform and the look. Last job we installed these in a large church to project the air to better stir the air in the room and the worked very well as planned.
Good as promised, good as expected.
I’m a returning customer for a few reasons... Sturdy construction, easy installation, the vents show up as ordered, and good communication. Highly recommend!
Quick shipping, product as advertised, would recommend.
I knew about the fair price and the product being in stock and off the shelf ready for shipment. I did not know or even expect -----
OUTSTANDING
Service
Product
Tracking
Delivery
Awesome, exactly as advertised.
I recently purchased linear air diffusers and couldn’t be more satisfied with the entire experience. The quality of the product is absolutely top-notch—sleek, durable, and designed to perfection. They added a modern and clean look to my space while performing exceptionally well.
There was a slight mix-up with my order, but I was incredibly impressed with how efficiently and professionally it was handled. The issue was resolved quickly and at no extra cost, showing their dedication to customer satisfaction.
Shipping was also impressively fast, and the diffusers arrived well-packaged and in perfect condition. I highly recommend these diffusers and this company for their excellent products and outstanding service!
Smooth communication from beginning till end. Highly recommend, very professional.
Great
Did a complete remodel of my condo and upgraded the vents to the linear.
Great quality at a good price !!!
Great quality at a good price !!!
