Select the Broan-NuTone 641 Wall Cap to provide reliable wall ventilation. Features an aluminum finish and is designed for use with 6-in round duct. Includes a built-in back-draft damper, and protective bird screen to prevent small pests from entering duct.
- Spring loaded backdraft damper with padded damper zone reduces chatter in windy conditions
- Built-in bird screen prevents birds and other small animals from entering duct work
- Constructed of durable aluminum
- Easy to install in new construction, replacement, or DIY applications
- Compatible with 7-in round ducting








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