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Ducts, Dampers, Adapters & Caps
Broan-NuTone® Steel Wall Cap, 3-1/4-Inch x 10-Inch Duct, Black
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.