Select the Broan-NuTone® 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.
- For pitched roof installation
- 25 GA. CRCQ steel, black powder coat paint finish
- Built-in backdraft damper and bird screen
- For 3" or 4" round duct