Product Name: HVAC Stainless Steel Exhaust Air Vent Caps for Fresh Air Model NO.: EV-CS304 Certification: UL, ISO9001, ROHS, CE ventilation mode: natural ventilation Material: Stainless Steel Thickness: 1.0mm Surface Finish: SS304 Color: Ral9016/9010 as Standard Size: 100mm,150mm,200mm,250mm Sample: Offer Application: HVAC System Accessories: Flexible Duct Installation: Ceiling OEM: Available Trademark: Vairtech Transport Package: Carton Box Specification: EV-CS304 Origin: China HS Code: 7616999000 Product Description HVAC stainless steel exhaust air vent caps for fresh airConstruction:frame & inner louver:: High quality extruded aluminum alloy(A6063) sheet.Description:The frame & blades are high quality extruded aluminum profiled construction with advantages of corrosion resistance and rigidity.This type of air vent is incorporated with a set of louver blades. It is commonly used as exhausted outlet and ventilation on the exterior walls of washrooms, kitchens, warehouses, houses,apartments, condominiums, gymnasiums...ect.There are inverted spring hooks located on the neck , which are used to secure the device onto the wall or duct.Surface Finish:Powder coated color finish as per RAL color standard color: RAL9016, 9010Material thickness:1.0mfor optionStandard Size:Item CodeNeckΦ N (mm)FaceΦ F (mm)EV-CS304-10098165EV-CS304-125123190EV-CS304-150148215EV-CS304-200198270EV-CS304-250248325Company InformationVairtech Ventilation Co.,Ltdis a professional manufacturer for supplying full range of ventilation products with about 15 years' experience, which is located in the Aluminum Hometown of China - Naihai, Foshan, Guangdong. We enjoy transportation & raw material convenience.