| http://www.w3.org/ns/prov#value | - Coming with a length of 5 feet, it will make sure that your gas appliances are properly vented so that the rest of your home is able to remain heated without the risk of burning to the ground due to a faulty venting system.Features Dura-Vent DirectVent Pro vent pipe with a 5-inch inner diameter and 8-inch outer diameter 60 inches in length Provides combustion air and exhaust venting for gas applia
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