Linear Air Diverter-48"x 5.5"-white (#4875-48x5.5) Description Our 48" long x 5.5" wide linear slot air diffuser (actual length: 47-3/4") installs easily over any 4’-long ceiling 3 slot air vent. This diffuser features a perimeter flange that enables it to be installed without tools by resting the flange between the vent and the ceiling grid support system. Once installed, the slot air diffuser redirects the hot or cold air flow leaving the vent so it flows more evenly throughout the space rather than it being forced down in one spot. The result is a much more comfortable office space. At 1800Ceiling.com, we carry a wide variety slot air diffusers in a range of different sizes. Our stock diffusers consist of solutions for 1, 2, 3, and 4-slot 2’ air vents. But, we can also custom-make diffusers for air vents with 5 or 6 slots. All of our diffusers are made from high-impact 0.08 gauge polystyrene, so you can rest assured that they’ll last. And best of all, they don’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 linear slot air diffusers and save on all of your ceiling repair needs. Actual Length=47-3/4" x 3" Deep x 5.5" Wide Features: Divert drafts from 3 slot linear air vents. Installs easily without tools Air deflector for 3 slot linear air vents Product Details: Manufacturer: ‎1800ceiling.com Part Number: ‎4875-48x5.5 Item Weight: ‎2 pounds Product Dimensions: ‎47.75 x 5.5 x 2.75 inches Country of Origin: ‎USA Item model number: ‎4875-48x5.5 Is Discontinued By Manufacturer: ‎No Color: ‎White Material: ‎.080 gauge high impact polystyrene Item Package Quantity: ‎1 Batteries Included?: ‎No Batteries Required?: ‎No Date First Available: November 20, 2012