Our exhaust air vent cover, also known as an external wall vent cap or hooded wall vent cover , is specifically designed for efficient ventilation. It can be installed in residential homes, commercial buildings, warehouses, garages, or any other structure requiring proper ventilation. Whether it's for kitchen exhausts, bathroom fans, or general airflow, our Exhaust Air Vent efficiently removes air and promotes fresh indoor environments.SpecificationColor: SilverMaterial: 304 stainless steelTotal Size: 350x350x275mm / 13.8 x 13.8 x 10.8 inch(L*H*W)Inner Width: 300mm / 12 inchScrew Mounting Hole: 11.5mm / 0.45 inchScrew Mounting Hole Distance: 325mm / 12.