Winnerwell Tent Protector 2.5" The outside diameter is 4.2" and suitable for 2.5" pipe. Winnerwell tentprotector is made of premium 304 stainless steel. When pipes on your stoves becomes very hot, a tentprotector will be a good choice to prevent your tent from burning, also prevent heat loss. The tentprotector is easily fixed on any hight of the pipe by tightening the wing bolts and go through tent. The cover provent the fallen leaves or something from droping into tent.