Broan 647 7" Round Duct Aluminum Wall Cap

For Better, Quieter Fans, Look No Farther than the Broan 7??Round Duct Wall Cap This 7" Broan Wall Cap is perfect for range hood and bath ventilation fans when you want to maximize performance and minimize sound. For durability and long life, this ducting accessory is made of steel with an aluminum finish. As a handy feature, this wall cap is equipped with a spring-loaded backdraft damper and bird screen to keep small animals and their nests out of your vent.