Select 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" x 10" or up to 8" 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" x 10" or up to 8" round duct