Winnerwell 90 Degree Pipe Section 2.5 Inch | for Medium Size Tent Stoves with 2.5 Inch Diameter Chimney Pipes Diameter 2.5" Premium stainless steel pipes for kinds of Winnerwell stoves(Stoves' SKU: 910202, 910102, 20025, 910207) Special design on both ends make it easy to insert and hard to break.