Duraflo® rangehood exhaust vents efficiently eliminate moisture, smoke, and cooking fumes in residential kitchens. Suitable for high-powered range hoods, they're easily installable with an adapter collar for 6-inch to 8-inch ducts. Seamless and leak-free, these vents exhibit superior UV and cold performance. With an internal damper minimizing backdraft and an external dual flapper preventing weather, bird, pest, and insect infiltration, our rangehood vents ensure optimal kitchen ventilation.