This aluminum air supply diffuser is widely used in malls, office buildings, restaurants, homes, and offices, perfect for ceiling installation for low and medium-pressure intake or exhaust ventilation, air conditioning system, fresh air ventilation system. This vent cover provides horizontal air flow in 4 way for better air distribution.SpecificationExternal Size: 550 x 550mm/21.7 x 21.7 Inch(L*W)Neck Size: 425 x 425mm/16.7 x 16.7 Inch(L*W) for 17 x 17 Inch ventilation duct or canalDuct Opening Size: 500 x 500mm/20 x 20 Inch(L*W)Height: 55mm/0.2 InchColor: WhiteMaterial: Aluminum AlloyPacking List: 1 Pcs x Air Supply DiffuserAdvantageDurable Material: Made from aluminum alloy with a matte finish, this durable air supply diffuser is waterproof, moistureproof, anti-oxidation, and not easy to fade and wear.
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