Lambro 4" Round Aluminum Roof Cap with Damper and Screen. It fits 4" diameter duct and has a 1-3/4" flange. It is not designed to be used for dryer exhaust.
Ed Young's True Value is a family owned business located in Williamsville New York, a small community outside of Buffalo. Our store is open most days from 8:00 am until 9:00 pm and offers many services to our neighbors.
