Dura Vent 3" X 48" Round Type B Gas Vent

Dura Vent 3" X 48" Round Type B Gas Vent 3" X 48" Round Type B Gas Vent, OD 3-5/8" Dura-Vent gas vent pipe and accessories assemble quickly with twistlock connections. Type B Gas Vents are for venting listed natural gas or liquid propane Category I appliances.