American Metal Products 4 in. x 1.5 ft. Round Type B Gas Vent Pipe

Lightweight and rugged, the American Metal Products 4 in. x 18 in. Round Type B Gas Vent Pipe features an aluminum and steel double-wall construction that is corrosion-resistant. It is a safe and secure fit for 4 in. pipes with ends and fittings constructed with snap-lock coupling. UL-Listed for product safety, this vent pipe is built to last.|Made of lightweight corrosion-resistant galvanized steel and aluminum, this pipe is built to last|Rugged, double-wall construction|Ends of pipe and fittings are constructed with snap-lock coupling for a secure fit every time|Fits most 4 in. pipes|UL- Listed for added security