Broan-NuTone® Steel Roof Cap for 3-1/4" x 10" or up to 8" Round Duct with Backdraft Damper and Bird screen, Black

Broan-NuTone® Steel Roof Cap for 3-1/4" x 10" or up to 8" Round Duct with Backdraft Damper and Bird Screen, Black The Broan-NuTone® 634 Steel Roof Cap is designed for rooftop ventilation of exhaust fans such as range hoods, bathroom, recreation rooms, and home gyms. This steel roof cap is compatible with up to 8" round or 3-1/4" x 10" rectangular ducting and features a backdraft damper and bird screen to prevent outside air infiltration and entry of birds or small pests into ductwork. It is suitable for use by electrical distributors and lighting solutions providers who require reliable, durable venting components for wire and cable or switchgear supplier applications. Note that this product is not intended for dryer venting. Specifications Material: Steel Color: Black Width: 14.25 in. Height: 6.63 in. Length: 18.75 in. Compatible Duct Sizes: Up to 8" round or 3-1/4" x 10" rectangular Product Weight: 4.0 lbs Country of Origin: Mexico Manufacturer: Broan Manufacturer Part Number: 634 Features Backdraft damper prevents reverse airflow Bird screen blocks birds and small pests from entering ductwork Easy installation with flange designed to fit under roof shingles Durable steel construction with high-quality black paint coating suitable for outdoor exposure Compatible with common exhaust fan ducting sizes for versatile applications Includes sealant strips and screw assembly for damper maintenance and replacement Downloads & Links Warranty Document Installation Guide Spec Sheet