Dura Vent 4" Flat 45 Degree Oval Type B Gas Vent Elbow

Dura Vent 4" Flat 45 Degree Oval Type B Gas Vent Elbow 4" Flat 45 Degree Elbow for Oval Type B Gas Vent, Dura-Vent gas vent pipe and accessories assemble quickly with push together connections. Type B Gas Vents are for venting listed natural gas or liquid propane Category I appliances.