Uxcell 16x16" Gable Vent Cover, Aluminum Alloy Rectangular Floor Air Vent Covers Metal Soffit Return Grille with Screen Mesh and Screw 2 Pcs

Color: White Material: Aluminum Alloy Total Size: 400 x 400 mm / 15.75 x 15.75 Inch Mounting Hole Diameter: 130 mm / 5.12 Inch Packing List: 2 Pcs x Rectangle Air Vent Cover (Screws and Expansion Tube Included) Advantages: Excellent corrosion resistance Application: Used for exterior wall ventilation