The Duravent 4″ x 6-5/8″ Galvanized 8-1/2″ 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 ??? 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. Available in black or galvalume exterior (both feature laser-welded outer wall seams). Does not fit Directvent GS pipe.
Highlights:
- For direct vent gas stoves and fireplaces
- 4″ID x 6-5/8″OD
- Extension pipe
- Twist lock construction
- Exterior laser welded seams
- For use with direct vent gas appliances vented horizontally or vertically
- Black
- 8-1/2″ Length??
Directvent Pro features tight inner connections for superb performance, with no gaskets or sealants required (unless specified by the appliance manufacturer). All black pipe lengths, pipe extensions, and elbows feature laser-welded outer wall seams for a sleek finish. Low-profile locks and no hems or beads allow for a beautiful product that looks elegant in any interior. Directvent Pro is a unitized, coaxial venting system designed for use with direct vent gas or propane stoves, heaters, and fireplaces.
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| ?Material Type | ?Aluminum, Galvanized Steel |
| ?Certification | ?UL Listed |
| ?Pipe Inside Diameter | ?4 x 6-5/8 |
| ?Pipe Class | ?Direct Vent |
| ?Pipe Shape | ?Round |
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