DuraVent 3" Diameter x 60" Long Type B Gas Vent: A venting pipe with a 3" inner diameter is required for this unit. This Dura-Vent 3" Diameter x 60" Long Type B Gas Vent pipe will save you money and avoid you from having to acquire more components for your DuraVent assembly. This 5-foot length is popular because it allows you to utilize fewer vent pipe parts and connectors in your DuraVent installation. You want your venting pipe system to last for years, and nothing beats a DuraVent assembly for ensuring that. With this 5-foot pipe, you can pick the best and save money.

DuraVent Type B gas vent pipe Measures 3 inches in diameter x 60 inches in length This 5-foot length is very popular because it makes for fewer pieces of vent pipe and fewer connections