Broan Roof Cap with Built-In Damper for 6 in. Round Duct in Black
The attractive Broan 634M roof cap is the perfect finish for your ventilation system. The built-in back-draft damper eliminates cold air from entering the home. The bird screen stops unwanted visitors from gaining entry.
6 in. round duct roof cap with manufactured steel housing and black electrically bonded epoxy finish
Built-in back-draft damper prevents cold air from blowing back into the home
Effective transition from inlet to outlet reduces air flow loss
