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Plastic Diffusers

Non-corrosive plastic ceiling registers, vents and air returns are ideal for wet and humid areas such as kitchens, locker rooms, showers, indoor pools, dishwashing areas and medical MRI rooms. Larger 2'x2' are made to be installed into a ceiling grid system while our smaller 12" x 12" plastic vents are ideal for rest rooms and showers.

Ceiling Repairs

Black soot and dust on your ceiling tiles can be expensive and difficult to clean or replace. Avoid damage to the ceiling tiles surrounding your ceiling diffusers by installing our unique ceiling dust deflectors. carries many innovative repair products and even offers How-To videos for the do-it-yourselfers.

Air Diverters

Block and redirect annoying drafts from square 2'x2' ceiling diffusers and linear ceiling vents. Our diverters install quickly without the need for tools. Stay comfortable while sitting at your work station. Ideal for offices, restaurants, commercial kitchens and medical facilities.

Clear Ceiling Dust Deflector for 24" x 24" traditional ceiling diffuser. (#4871)

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  • 4871 Clear Ceiling Dust Deflector (VENT NOT INCLUDED)
  • Clear Ceiling Dust Deflectors for 24"x24" Ceiling Diffusers (VENT NOT INCLUDED)
  • The 4871 Kit includes 4 side rails and 4 corner clips.

Clear Ceiling Dust Deflector for 24" x 24" traditional ceiling diffuser. (#4871)

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  • Buy 10 for $21.99 each and  save 5%
  • Buy 20 for $20.99 each and  save 9%
  • Buy 50 for $19.99 each and  save 14%


24" x 24" Ceiling Dust Deflector

Are the ceiling tiles surrounding your air vents dirty and dusty? If so, then our ceiling dust deflector is just the thing you need. Specially-designed for easy installation, our dust deflectors feature a ½”-wide flange that rests between the HVAC diffuser and the ceiling grid system. Once installed, they provide a 1.5” barrier that prevents dust and dirt from being blown over your ceiling tiles. With our dust deflectors, your ceiling tiles will stay clean and white, no more unsightly dirt!

At, our 24” x 24” ceiling dust diffusers fit perfectly over any 2’ x 2’ air vent. They’re made from high-impact 0.08 gauge clear polystyrene, so they’ll not only be invisible to the eye, but you can rest assured that they’ll last. And best of all, our dust diffusers won’t inhibit or restrict the flow of air from your HVAC vents so they won’t affect the efficiency of your system. Shop our expansive inventory of ceiling dust deflectors and save on all of your ceiling repair needs.

Additional Information

Item # 4871

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