Broan-NuTone Fresh Air Inlet Aluminum Wall Cap for 6 in. Round Duct for Range Hoods and Bathroom Exhaust Fans in Aluminum

Improve your ventilation system by installing this Model 641FA Broan 6 in. Round Duct Aluminum Fresh Air Inlet Wall Cap. It acts as an air inlet and helps minimize airflow loss for effective venting. Included is a built-in bird screen to help keep small animals from entering.