8-12 Pipe Extension (4x6) Direct Vent

The Duravent 4" x 6-5/8" Galvanized 8" Pipe Extension is used in a venting installation. The Duravent pipe extension is used to add length to a straight length of Directvent Pro. 8” pipe adds 3”- 7” of length, 16” pipe adds 3”- 14 ½” of length, when used with rigid sections of pipe. Direct vent lengths feature a fully unitized, twist-lock construction. Use of sealant is optional, unless specified by the appliance manufacturer