Broan 885BL Wall Cap Steel Black for 3" and 4" round duct
Broan 885BL Wall Cap For 3" or 4" Round Duct 4" to 3" Transition Included Standard Package - 6 to a Carton Built-In Bird Screen 24 GA CRCQ Steel, Black Electrically-Bonded Epoxy Finish Built-In Damper Not Intended for Dryer Vent Usage