DuraVent PelletVent Pro 4" Inner Diameter Stainless Steel Vent Pipe with Galvalume Outer Wall - 12" Length: This unit requires a venting pipe with a 4" inner diameter. Never choose a product that is a bargain in terms of quality because you will regret your decision for the rest of your life. The DuraVent PelletVent Pro Stainless Steel Vent Pipe with Galvalume Outer Wall has a 4" inner diameter, giving your stove a pipe that is capable of supplying the service it needs to provide you and your home the warmth that they need during those long cold wintry months.

12 Inch length Efficiently vents pellet and corn-fueled stoves and inserts .012" stainless steel inner wall and .018" galvalume outer wall Air-insulated double-wall construction Laser-welded seams Secure twist-lock connections 1" clearance to combustibles 4" inner diameter with a 4 5/8" outer diameter UL Listed Limited lifetime warranty