This aluminum grill air vent cover is widely used for HVAC systems in malls, office buildings, restaurants, homes, and offices, perfect for exterior walls, side walls, ceilings, and floors.SpecificationOuter Size: 550 x 550 mm/21.7 x 21.7 Inch(L*W*H)Inner Size: 495 x 495mm/19.5 x 19.5 Inch(L*W), suitable for the air duct/drywall opening size: 500 x 500mm/20 x 20 Inch(L*W)Height: 35mm/ 1.4 InchColor: WhiteMaterial: Aluminum AlloyPacking List: 1 Pcs x Aluminum Return Air GrilleAdvantageDurable Material: Constructed from aluminum alloy with a matte finish, this durable and stylish air vent cover is waterproof, moistureproof, anti-oxidation, and not easy to fade and wear. Can resist high and low temperatures and anti-corrosion.45° Angle Design: With its 45-degree angle, this vent cover can ensure maximum and comfortable airflow.InstructionMeasure the wall opening before installing the air vent cover, then attach the grille to the opening and fix it with screws(not included)Note: Please measure the wall opening and check the product size before purchasing.
