Dura Vent 4" Round Type B Gas Vent Wall Thimble

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Dura Vent 4" Round Type B Gas Vent Wall Thimble 4" Round Type B Gas Vent Female Adapter, 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.

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