Duravent 8 1/2 Pipe Extension (Black)

DirectVent Pro is a unitized, coaxial venting system designed for use with direct vent gas or propane stoves, heaters, and fireplaces. DirectVent pro features tight inner connections for a beter performance, with no gaskets or sealants required (note: some manufacturers may require sealant). Designed for appliances tested and listed for direct vent.

• Fully unitized twist-lock construction in both 4" x 6 5/8" and 5" x 8" vent sizes.
• Use of sealant is optional, unless specified by the appliance manufacturer.
• No beads or hems.
• Black pipe lengths feature exterior laser-welded seams.