Description
Select the Broan-NuTone 639 Wall Cap to provide reliable wall ventilation. Features a black enamel finish and is designed for use with 3-1/4″ x 10″ duct. Includes a built-in back-draft damper, and protective bird screen to prevent small pests from entering duct.
Features:
- For 3¼” x 10″ duct
- Spring-loaded backdraft damper and bird screen
- 24 GA CRCQ Steel, black powder coat paint finish
- Do not use for dryer venting
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