Broan has designed this Roofcap to fit with 3" and 4" round duct. This roof cap is used with venting systems, most commonly in bathroom fan applications. The 636 has a built-in backdraft damper and bird screen which comes standard. This Broan roofcap comes in a steel baked black enamel finish for durability and long life that stands up to the elements.
|Use:||Ducting and Venting|
|Shipping Dimensions||1.0" x 0.8" x 0.5"|