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Front view of a black 36 inch 3-slot linear diffuser with 19mm openings for precision airflow in commercial HVAC systems
Side view of a black 36 inch 3-slot linear diffuser with 19mm openings for precision airflow in commercial HVAC systems
Another side view of a black 36 inch 3-slot linear diffuser with 19mm openings for precision airflow in commercial HVAC systems
Face dimensions of a black 36 inch 3-slot linear diffuser with 19mm openings for precision airflow in commercial HVAC systems
Neck dimensions of a black 36 inch 3-slot linear diffuser with 19mm openings for precision airflow in commercial HVAC systems
Frame height of a black 36 inch 3-slot linear diffuser with 19mm openings for precision airflow in commercial HVAC systems
Full dimensions of a black 36 inch 3-slot linear diffuser with 19mm openings for precision airflow in commercial HVAC systems
Linear Slot Diffuser 3-slot submittal
Linear Slot Diffuser - 3-slot comparison (precision VS. high airflow)
Linear Slot Diffuser - Installation instructions

36" Linear Slot Diffuser Vent Cover (3 Slots with 19mm Opening) - Matte Black - FLO-MATRIX HVAC

FWASD19-3/153W/942L/005
Regular price
$114.65 CAD
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$114.65 CAD
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Details


This 36-inch linear slot diffuser provides a premium upgrade over standard vent covers, delivering superior airflow through three precision-engineered 19mm slots. These architectural-grade units feature a durable matte black finish and heavy-duty extruded aluminum construction, offering 180° adjustable airflow control - perfect for demanding VAV systems and commercial applications where basic vent covers fall short. See our smoke test video for performance verification. Professional installation recommended for optimal results.

 

  • Precision Design & Fit: With a 36" x 4¾" nominal size, this linear slot diffuser features three crisp ¾" openings for a sharp, modern look that integrates seamlessly into any ceiling. (Please check the size diagram for exact measurements).
  • Eliminates Ceiling Smudges: An integrated foam gasket creates a tight seal against the ceiling, preventing dusty air leakage that causes those frustrating black marks and ensuring all conditioned air is directed through the vent covers. 
  • Commercial-Grade Durability: Built from heavy-duty 6063-T5 aluminum and fortified with robust Tig welds, this vent cover is engineered to resist cracking, chipping, and bending, ensuring a lifetime of dependable operation.
  • Tough Matte Black Finish: The sophisticated matte black powder coat is not only chosen for its modern look but also for its superior resistance to scratches, corrosion, and everyday wear, keeping it looking pristine.
  • Seamless, No-Screw Look: Achieve a flawless, custom installation. All mounting points are discreetly located on the inner edges, leaving the visible face of the air register completely clean and unbroken for a minimalist aesthetic. (Fasteners are not included).
  • Customizable Airflow Performance: For ideal HVAC system balancing, this linear slot diffuser can be paired with a custom plenum box (sold separately), allowing you to fine-tune air delivery for any room's requirements.
  • Fast North American Shipping: We ensure quick dispatch from our warehouse located in Vancouver, Canada. Orders to the U.S. typically arrive at their destination within 2-7 business days.

 

Full dimensions of a black 36 inch 3-slot linear diffuser with 19mm openings for precision airflow in commercial HVAC systems

 

Performance

 

Performance Data

Flow Rate (CFM)

 Static Pressure (in.wg) Noise Level (NC)

236
337
468

0.06
0.12
0.17

20
30
40

  * 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

 

Linear Slot Diffuser 3-slot submittal

 

Resources

 

Our Guide to 19mm VS. 25mm Slot Width Differences

 

Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems

 

CFD Airflow Analysis Services for Smarter HVAC Design

 

 

Defining "Commercial Grade" in Air Distribution Products

What truly separates commercial-grade grilles, registers, and diffusers? It's the comprehensive engineering data that allows HVAC professionals and design teams to specify products with absolute confidence. This means full transparency on the materials used and certified performance results for critical factors such as noise generation, airflow volume, and static pressure loss.

To guarantee this performance, every product is validated against the stringent protocols of ASHRAE 70-2006 and ADC1062:GRD-84. Our R&D process integrates cutting-edge CFD simulations alongside physical testing, ensuring our designs deliver superior efficiency and performance.

We've been a leading manufacturer of commercial linear slot diffusers (offering 1 to 12 slots) since 1997. Have a project that requires expert insight? Our product specialists are ready to assist you at +1-604-437-1527.

 

Videos

 

Showcase Video of Product - 3 Slots Linear Diffuser 

 

Linear Slot Diffuser Smoke Test (Vertical Throw) Video - 3 Slots

 

Video of previous custom plenums

 

Our retail store showroom - Greater Vancouver, Canada

Details


This 36-inch linear slot diffuser provides a premium upgrade over standard vent covers, delivering superior airflow through three precision-engineered 19mm slots. These architectural-grade units feature a durable matte black finish and heavy-duty extruded aluminum construction, offering 180° adjustable airflow control - perfect for demanding VAV systems and commercial applications where basic vent covers fall short. See our smoke test video for performance verification. Professional installation recommended for optimal results.

 

  • Precision Design & Fit: With a 36" x 4¾" nominal size, this linear slot diffuser features three crisp ¾" openings for a sharp, modern look that integrates seamlessly into any ceiling. (Please check the size diagram for exact measurements).
  • Eliminates Ceiling Smudges: An integrated foam gasket creates a tight seal against the ceiling, preventing dusty air leakage that causes those frustrating black marks and ensuring all conditioned air is directed through the vent covers. 
  • Commercial-Grade Durability: Built from heavy-duty 6063-T5 aluminum and fortified with robust Tig welds, this vent cover is engineered to resist cracking, chipping, and bending, ensuring a lifetime of dependable operation.
  • Tough Matte Black Finish: The sophisticated matte black powder coat is not only chosen for its modern look but also for its superior resistance to scratches, corrosion, and everyday wear, keeping it looking pristine.
  • Seamless, No-Screw Look: Achieve a flawless, custom installation. All mounting points are discreetly located on the inner edges, leaving the visible face of the air register completely clean and unbroken for a minimalist aesthetic. (Fasteners are not included).
  • Customizable Airflow Performance: For ideal HVAC system balancing, this linear slot diffuser can be paired with a custom plenum box (sold separately), allowing you to fine-tune air delivery for any room's requirements.
  • Fast North American Shipping: We ensure quick dispatch from our warehouse located in Vancouver, Canada. Orders to the U.S. typically arrive at their destination within 2-7 business days.

 

Full dimensions of a black 36 inch 3-slot linear diffuser with 19mm openings for precision airflow in commercial HVAC systems

 

Performance

 

Performance Data

Flow Rate (CFM)

 Static Pressure (in.wg) Noise Level (NC)

236
337
468

0.06
0.12
0.17

20
30
40

  * 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.

 

 

Resources

 

Our Guide to 19mm VS. 25mm Slot Width Differences

 

Linear Slot Diffusers: The Smart Choice for Modern HVAC Systems

 

CFD Airflow Analysis Services for Smarter HVAC Design

 

 

Defining "Commercial Grade" in Air Distribution Products

What truly separates commercial-grade grilles, registers, and diffusers? It's the comprehensive engineering data that allows HVAC professionals and design teams to specify products with absolute confidence. This means full transparency on the materials used and certified performance results for critical factors such as noise generation, airflow volume, and static pressure loss.

To guarantee this performance, every product is validated against the stringent protocols of ASHRAE 70-2006 and ADC1062:GRD-84. Our R&D process integrates cutting-edge CFD simulations alongside physical testing, ensuring our designs deliver superior efficiency and performance.

We've been a leading manufacturer of commercial linear slot diffusers (offering 1 to 12 slots) since 1997. Have a project that requires expert insight? Our product specialists are ready to assist you at +1-604-437-1527.

 

Videos

 

Showcase Video of Product - 3 Slots Linear Diffuser 

 

Linear Slot Diffuser Smoke Test (Vertical Throw) Video - 3 Slots

 

Video of previous custom plenums

 

Our retail store showroom - Greater Vancouver, Canada