Broan Roof Cap 634

The Broan-NuTone 634 Roof Cap to provide reliable rooftop ventilation. Features a black enamel finish and is designed for use with 3-1/4 inch x 10 inch or up to 8 inch round duct. Includes a built-in back-draft damper, and protective bird screen to prevent small pests from entering duct.

For pitched roof installation 24 GA. CRCQ steel, black powder coat paint finish Built-in backdraft damper and bird screen For 3¼ inch x 10 inch or up to 8 inch round duct