Steel Roof Cap for 3-Inch or 4-Inch Round Duct w/ Damper & Birdscreen, Black

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SKU: 636

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The Broan-NuTone 636 Roof Cap to provide reliable rooftop ventilation. Features a black enamel finish and is designed for use with 3 in. or 4 in. round ducts. Includes a built-in back-draft damper, and protective bird screen to prevent small pests from entering duct.

  • For pitched roof installation
  • 25 GA. CRCQ steel, black powder coat paint finish
  • Built-in backdraft damper and bird screen
  • For 3 inch or 4 inch round duct

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