Broan 3-1/4 x 10 Inch or up to 8 Inch Round Duct Roof Cap with Backdraft Damper and Bird Screen

The Broan-NuTone® 634 Steel Roof Cap is an easy-to-install vent for exhaust fans (range hoods, bathroom, rec room, home gym, etc.). This cap provides reliable roof top ventilation and features both a back draft damper and bird screen, preventing outside air from entering the home and birds or small pests from entering duct work.

Compatible with up to 8" ducting and 3-1/4" x 10" ducting. Not suitable for dryer venting.

Features:

• Built-in backdraft damper prevents outside air from entering home
• Built-in bird screen prevents birds and other small animals from entering duct work
• Constructed of durable steel for premium durability
• Easy to install in new construction, replacement, or DIY applications
• Compatible with 3-1/4" x 10" ducting or up to 8" round ducting

Specifications:

• Depth: 18-3/4"
• Height: 6.63"
• Depth: 18-3/4"
• Duct Size: 8" Round, 3-1/4" x 10"
• Material: Steel