Ships within Canada and USA. Delivery to USA takes 2-7 business days after dispatch! In stock and ready to ship.

Front view of an anodized silver 48 inch 1-slot linear diffuser with 19mm openings for precision airflow in commercial HVAC systems
Linear Slot Diffuser -1-slot submittal
Linear Slot Diffuser - 1-slot comparison (precision VS. high airflow)
Linear Slot Diffuser - Installation instructions

48" Linear Slot Diffuser Vent Cover (1 Slot with 19mm Opening) - Anodized Satin Silver - FLO-MATRIX HVAC

FWASD19-1/76W/1251L/007
Regular price
$84.41 CAD
Sale price
$84.41 CAD
Regular price
Sold out
Unit price
per 
Shipping calculated at checkout.

Details

This 48-inch linear slot diffuser combines refined aesthetics with engineered performance through its durable anodized silver finish. Unlike bargain alternatives, it's manufactured from commercial-grade extruded aluminum - matching the exact material quality demanded in premium architectural projects. The unit provides exceptional airflow consistency for your spaces while delivering precise VAV system control via its 19mm slot design and 180-degree adjustable blades. (View our airflow demonstration to observe the diffuser's performance characteristics in the videos section.) To ensure proper operation and longevity, installation should be performed by certified HVAC professionals.

 

  • Nominal Size: 48" x 1-1/2" (please refer to size chart below for details)
  • The slot opening is 3/4" inch (19mm) wide
  • Our linear slot diffusers include a weather stripping seal to prevent ceiling smudging caused by some substandard performance air vents with air leakage issues.
  • With a rich powder coated finish, these strong aluminum profiles and reinforced tig-welds are resistant against cracking, chipping, and bent corners. You will definitely be able to tell the difference when you are installing them.
  • Commercial Grade
  • Material: 6063-T5 Grade Extruded Aluminum (This grade of aluminum is commonly known as the architectural alloy. It has a relatively high tensile property with superb finishing characteristics and a high degree of resistance to corrosion.)
  • There are no pre-drilled holes on the surface. Fastening must be done on the inner border sides for an aesthetic appearance. Please note that our slot diffusers do not include fasteners.
  • Finish: Clear Satin Anodized (a perfect canvas for a DIY spray paint job or installed as is)
  • Contact us for customizable plenum box options. Our plenums intro video.
  • Ships from Vancouver, Canada. Shipping to USA takes 2-7 business days after dispatch (depends on delivery address).

 

Performance

 

Performance Data

Flow Rate (CFM)

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

175
240
350

0.11
0.20
0.41

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

 

Linear Slot Diffuser -1-slot submittal

 

 

Additional Information

 

What constitutes commercial grade grilles, registers, and diffusers (GRD)? 

A commercial grade product should have a complete set of technical data that would assist architects, engineers, and HVAC professionals to select the proper products for their projects. A standard commercial product should have the following information:

  • Listed specific material and grade used as the primary composition material
  • Comprehensive product performance data: flow rate, static pressure, noise level and more
  • For project specific enquires regarding our products, please contact our product specialists at +1-604-437-1527.

 

Other Details: 

  • This product is tested in accordance to:  ADC1062:GRD-84  (ADC1062R4) and ASHRAE 70-2006 “Method of Testing the Performance of Air Outlets and Air Inlets (ANSI approved)”. Our air ventilation products are constantly under research and redevelopment utilizing today’s testing standards and computational fluid dynamics simulation (CFD) energy models.
  • We have been producing quality 1 to 12 slots linear diffusers for the HVAC industry since 1997.

 

Videos

 

Showcase Video of Product - 1 Slot Linear Diffuser

 

Demonstration of airflow direction adjustment - 1 Slot Linear Diffuser

 

How to insert a linear slot diffuser into a plenum

 

Linear Slot Diffuser Smoke Test (Vertical Throw) Video - 1 Slot

 

Linear Slot Diffuser Smoke Test (Horizontal Throw) Video - 1 Slot

 

Videos of previous custom plenums

 

 

Our retail store showroom - Greater Vancouver, Canada


This 48-inch linear slot diffuser combines refined aesthetics with engineered performance through its durable anodized silver finish. Unlike bargain alternatives, it's manufactured from commercial-grade extruded aluminum - matching the exact material quality demanded in premium architectural projects. The unit provides exceptional airflow consistency for your spaces while delivering precise VAV system control via its 19mm slot design and 180-degree adjustable blades. (View our airflow demonstration to observe the diffuser's performance characteristics in the videos section.) To ensure proper operation and longevity, installation should be performed by certified HVAC professionals.

 

  • Nominal Size: 48" x 1-1/2" (please refer to size chart below for details)
  • The slot opening is 3/4" inch (19mm) wide
  • Our linear slot diffusers include a weather stripping seal to prevent ceiling smudging caused by some substandard performance air vents with air leakage issues.
  • With a rich powder coated finish, these strong aluminum profiles and reinforced tig-welds are resistant against cracking, chipping, and bent corners. You will definitely be able to tell the difference when you are installing them.
  • Commercial Grade
  • Material: 6063-T5 Grade Extruded Aluminum (This grade of aluminum is commonly known as the architectural alloy. It has a relatively high tensile property with superb finishing characteristics and a high degree of resistance to corrosion.)
  • There are no pre-drilled holes on the surface. Fastening must be done on the inner border sides for an aesthetic appearance. Please note that our slot diffusers do not include fasteners.
  • Finish: Clear Satin Anodized (a perfect canvas for a DIY spray paint job or installed as is)
  • Contact us for customizable plenum box options. Our plenums intro video.
  • Ships from Vancouver, Canada. Shipping to USA takes 2-7 business days after dispatch (depends on delivery address).

 

 

Performance Data

Flow Rate (CFM)

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

175
240
350

0.11
0.20
0.41

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.

 

 

Linear Slot Diffuser -1-slot submittal

 

 

 

What constitutes commercial grade grilles, registers, and diffusers (GRD)? 

A commercial grade product should have a complete set of technical data that would assist architects, engineers, and HVAC professionals to select the proper products for their projects. A standard commercial product should have the following information:

  • Listed specific material and grade used as the primary composition material
  • Comprehensive product performance data: flow rate, static pressure, noise level and more
  • For project specific enquires regarding our products, please contact our product specialists at +1-604-437-1527.

 

Other Details: 

  • This product is tested in accordance to:  ADC1062:GRD-84  (ADC1062R4) and ASHRAE 70-2006 “Method of Testing the Performance of Air Outlets and Air Inlets (ANSI approved)”. Our air ventilation products are constantly under research and redevelopment utilizing today’s testing standards and computational fluid dynamics simulation (CFD) energy models.
  • We have been producing quality 1 to 12 slots linear diffusers for the HVAC industry since 1997.

 

 

Showcase Video of Product - 1 Slot Linear Diffuser

 

Demonstration of airflow direction adjustment - 1 Slot Linear Diffuser

 

How to insert a linear slot diffuser into a plenum

 

Linear Slot Diffuser Smoke Test (Vertical Throw) Video - 1 Slot

 

Linear Slot Diffuser Smoke Test (Horizontal Throw) Video - 1 Slot

 

Videos of previous custom plenums

 

 

Our retail store showroom - Greater Vancouver, Canada