The American Metal Products Adjustable Length Round Type B Gas Vent is constructed of corrosion-resistant galvanized steel for durability. The vent's length is adjustable from 3 - 10 in. One of the fire safety features of double-wall Type B gas vent is that its outer wall, insulated by the airspace beneath it, requires only 1 in. clearance to combustible material in the structure. The outer pipe of corrosion-resistant galvanized steel ensures strength, safety and durability.
- Easily adjust the length from 3 in. to 10 in.
- Made from galvanized steel for added durability
- Compatible with all 4 in. steel pipes
