639 Broan-NuTone Steel Wall Cap For 3-1/4" X 10" Duct With Damper & Bird Screen, Black

BN639 MFG #: 639
BN639
  • Manufacturer Name: Broan-Nutone
  • Specifications
  • Documents
  • Description
  • Compatible with most 3-1/4 in. x 10 in. rectangular ducts
  • Includes spring-loaded backdraft damper and bird screen to help Protect your ducts
  • 24-gauge cold-rolled steel construction with an electrically bonded black finish Provides longevity
  • Used for outdoor venting applications
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.