DuraVent DirectVent Pro 16 Inch Adjustable Pipe Length - Galvanized Direct Vent Pipe For Gas Fireplaces & Gas Stoves | 58DVA-16A |

Use to add length to a straight length of DirectVent Pro. 8 ½" 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. Features laser-welded outer wall seams. Does not fit DirectVent GS pipe.