Residential & Light Commercial Plastic Air Diffusers (#4946-xx)

In stock
Grouped product items
Product Name Qty
1'x1' Square Standard 4-way grille/damper/box (4946W-4way)
12.5" Round White Plastic Standard Air Grille (4946W-360)
1' x 1' White Plastic Return w/damper (4946W-RetDamp)
1'x1' Black Plastic Antique Diffuser (4946BK-Antique)
1'x1' 3-way air flow white plastic grille (4946-3way)


11-1/4" x 11-1/4" OD (Round is 12-1/2") Hole size: 9-1/4" Diameter 

Plastic Air Diffusers for Residential and Light Commercial Installations

These plastic air diffusers are ideal for any residential or light commercial HVAC installation. They are easy to install by one person as above-ceiling access in not required. These ceiling air diffusers feature an innovative built-in damper system that allows you to shut off the air flow using the included key. Standard plastic air diffusers feature a collar that is designed to fit round flex ductwork in widths ranging from 6" to 8", making them the ultimate air diffusers for a variety of installations.

These unique plastic air diffusers are all-inclusive, lightweight, and very easy to install. They provide the best in convenience and flexibility. At, we offer a number of plastic ceiling air diffusers with built-in dampers in a variety of sizes and colors. Shop our complete inventory and save on your order today.

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Item # 4946-xx
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