634 Broan-NuTone Steel Roof Cap For 3-1/4" X 10" or up to 8" Round Duct With Damper & Bird Screen, Black

BN634 MFG #: 634

Manufacturer Name: Broan-Nutone

Specifications
Documents
Description

For 3-1/4" X 10" or up to 8" round duct
Built-in backdraft damper and bird screen
Steel baked black enamel finish
Includes built-in back draft damper and bird screen for increased Protection

Install Instructions
Specification Sheet

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.