DuraVent PelletVent Pro 4" Inner Diameter Stainless Steel Vent Elbow with Black Outer Wall - 90-Degree: This unit necessitates a venting pipe with a 4" inner diameter. This elbow can be used to balance impediments in your vent installation and swivels 360 degrees at the base to make part alignment simple. It was created with pellet and corn-fueled stoves and inserts in mind. With a 0.012" stainless steel inner wall and a 0.018" galvalume outer wall, the item has an air-insulated double wall construction. It also comes with laser-welded seams, a sleek black finish, and twist-lock connections for easy assembly. It necessitates a 1" distance from combustibles. The inner diameter of the part is 4", while the outside diameter is 4-5/8". It has a limited lifetime warranty and is UL listed.

90 Degree Elbow Efficiently vents pellet and corn-fueled stoves and inserts Offsets venting obstructions Swivels 360 degree at base .012" stainless steel inner wall and .018" galvalume outer wall Air-insulated double-wall construction Laser-welded seams Secure twist-lock connections Sleek black finish 1" clearance to combustibles 4" inner diameter with a 4 5/8" outer diameter UL Listed Limited lifetime warranty