Duct Connector Square Flange Abs Plastic For 100-300Mm Dia Hose Check Valve

ABS plastic have a good hardness and it is extremely lightweight. It also have a good resistance of acid and alkali. A design with thinner top and thicker bottom can make this vent much convenient to connect. Internal arc design reduces wind resistance. Widely used on bathroom or kitchen extractor fan, In-line extract fans or cooker hoodSpecifications: