The RVK1A Broan Roof Ducting Kit is for roof ducting installation of exhaust fans with a 3 in. or 4 in. duct. The black steel roof cap features a built-in back draft damper and bird screen. Included is 8 ft. of 4 in. Dia flexible foil ducting that conforms to UL 181 Class 1 Air Connector requirements. For a 4 in. round duct, the kit also includes a 4 in. metal duct connector, 2 nylon zip ties and 4 mounting screws.
- 8 ft. of 4 in. 2-ply metallic laminate flexible duct which conforms to UL181 class 1 air connector
- Compatible with Broan and NuTone brand products
- Designed to exhaust a fan through a slanted roof
- Not for use as dryer venting