Broan-NuTone Roof Cap with Built-In Damper for 3-1/4 in. x 10 in. Duct or up to 8 in. Round Duct in Black Steel

Select this high capacity roof cap from Broan when using ventilation products. Features a black enamel finish and is designed for use with 3-1/4 in. x 10 in. or up to 8 in. round ducts. Includes a built-in back-draft damper, and protective bird screen to prevent small pests from entering duct.