Broan-NuTone® Steel Roof Cap for 3-1/4" x 10" Duct with Backdraft Damper and Bird Screen, Black

Broan-NuTone® Steel Roof Cap for 3-1/4" x 10" Duct with Backdraft Damper and Bird Screen, Black The Broan-NuTone® Steel Wall Cap Model 639 is designed for ventilation applications in residential and commercial settings, suitable for exhaust fans such as bathroom, range hood, recreation room, and home gym ventilation. This product is ideal for electrical distributors and lighting solutions providers offering wire and cable accessories or switchgear supplier portfolios requiring reliable ventilation components. It fits 3-1/4" x 10" rectangular ducting and provides effective air flow control with a spring-loaded backdraft damper and integrated bird screen to prevent outside air infiltration and pest entry. Specifications Material: Steel Color: Black Dimensions: 12.75 in. (Length) x 4.9 in. (Width) x 5.63 in. (Height) Product Weight: 2.0 lbs Compatible Duct Size: 3-1/4" x 10" Country of Origin: Mexico Manufacturer: Broan Manufacturer Part Number: 639 Features Spring-loaded backdraft damper with padded damper zone to reduce wind noise Built-in bird screen to prevent entry of birds and small pests into ductwork Black electrically-bonded epoxy finish for corrosion resistance Easy installation with flange mounting holes for secure attachment Not suitable for dryer venting applications Downloads & Links Spec Sheet Installation Guide