DuraVent DuraVent DuraFlex 12 Inch x 18 Inch Galvanized Steel Class B Double Wall Gas Pipe Length

Features:Type B vent pipe is used to vent natural gas or liquid propane appliances such as furnaces, water heaters, boilers, and room heaters.Aluminum inner wall and galvanized steel outer wall resists rust and corrosionInstalls easily with DuraVent's innovative DuraLock system that snaps and locks the pieces togetherUL listed to UL 441 and UL 1777 standardsOne inch clearance from combustible materials must be maintainedLimited lifetime warranty for the original ownerSpecifications:Pipe Class: Type BPipe...