The Aluminum Gable Vent is suitable for various buildings, such as residential, commercial, and industrial buildings. It can be used on roofs, walls, and other locations to provide good ventilation without concern about rainwater entering the room.Specification:Material: Aluminum AlloyColor: WhiteTotal Size: 150x150mm / 6x6 inchInner Size: 120x120mm / 4.7x4.7 inchMounting Hole Distance: 135mm / 5.3 inchPacking Listing: 2 x Aluminum Gable Vent (Screws Included)Advantage:Made of high-quality aluminum alloy, which is sturdy and durable. It has a uniform paint coating, which makes it look beautiful. It features a slanted louver design, which effectively prevents rainwater from entering the interior and keeps it dry. The back is equipped with a mesh cover, which effectively prevents sand stone from entering.