The Dryer Wall Vent’s galvanized, powder-coated steel damper is lightweight and, maker In-O-Vate claims, creates zero back-pressure. Two balanced magnets on the door deter birds and other pests. The vent works with stucco, brick, and most conventional sidings, and its collar is sized to fit standard 4-inch seamed pipe in new construction or retrofits. dryerwallvent.com

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