Dura Vent 3" Round Type B Gas Vent Pipe Collar
Dura Vent 3" Round Type B Gas Vent Pipe Collar 3" Round Type B Gas Vent Pipe Collar, 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.
