Wall Cap Broan 642 4"
This aluminum Wall Cap
is for 3 to 4 inch round exhaust and it offers a built in back draft damper. This Wall Cap
has an aluminum natural finish. This Wall Cap
is built for a four inch round duct system. This Wall Cap
is used for vent terminations from your bathroom exhaust fan. This Wall Cap
is easy to install, when installed the product will start working right away.