Kitchen Bathroom Ventilation PATIKIL 16 X 2 Inch Door Air Vent Cover, Heavy Duty Aluminum Grille Ventilation Cover Louvered Fireplace Cover The back is equipped with a mesh cover, which effectively prevents sand stone from entering. It can be used on roofs, walls, and other locations to provide good ventilation without concern about rainwater entering the room. It features a slanted louver design, which effectively prevents rainwater from entering the interior and keeps it dry. Just use screws to fix it in the appropriate position. 8x8 Inch Louvered Vent Grille PATIKIL 8x8 Inch Aluminum Wall Vent It has a uniform paint coating, which makes it look beautiful. It features a slanted louver design, which effectively prevents rainwater from entering the... Specification:Material: AluminumTotal Size: 195x195mm / 8x8 inchInstallation Hole Distance: 174mm / 6., 85 inchMounting Hole Dia: 4mm Packing Listing: 1 x Gable Vent (Screws not included)Advantage:Made of aluminum , which is sturdy and durable. During the installation process, please ensure that the screws are secure to ensure the stability and safety of the product., (Screws not included) The aluminum Gable Vent is suitable for various buildings, such as residential, commercial, and industrial buildings. Application: The aluminum Gable Vent is suitable for various buildings, such as residential, commercial, and industrial buildings. Instruction: The screw installation method is simple and convenient for users to install quickly. It is also easy to install, and you can mount it on the wall with screws in just a few minutes. PATIKIL 8x8 Inch Aluminum Gable Vent, Exterior Wall Outlet... Instruction:The screw installation method is simple and convenient for users to install quickly.