Roof Cap with Built-In Damper for 3 in. or 4 in. Round Duct in Black Hardware 0 Ah Battery Included Cutting

0 Ah Battery Included Cutting Capacity Width / Depth Of Throat(In

) 13 in Product Thickness (in

independently adjustable guides are tool-less to save you time on set up

) 10 Coverage Area (sq

Item Weight 40 Soil Amendment Type Soil Conditioner Bag Weight (lb

Roof Cap with Built-In Damper for 3 in. or 4 in. Round Duct in Black Hardware 0 Ah Battery Included CuttingSelect the Broan 636 Roof Cap to provide reliable rooftop ventilation. Features a black enamel finish and is designed for use with 3 in. or 4 in. round ducts. Includes a built in back draft damper, and protective bird screen to prevent small pests from entering duct. Designed for easy installation Compatible with either a 3 in. or 4 in. round duct Manufactured of steel with baked black enamel finish for added durability and resilience Includes built