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FAMCO manufactures a wide variety of hooded metal wall vents used for air supply, exhaust, air/moisture removal and with air exchangers. These wall vents are built with a round or rectangular tube/pipe and can be built with or without a damper and with or without a screen. We also have a new line of heavy duty wall vents with a powder coat finish and a four inch model with a spring loaded damper and gasket. The round piped wall vent can also be used with a back draft or butterfly damper. Our metal wall vents are built in aluminum, galvanized steel, pre-painted steel, powder coat finish and copper.