Winnerwell Triple Wall Pipe Section - Strongly recommended where your chimney pipe exits the stove jack in your tent or shelter, the Winnerwell 3.5" Triple Wall Pipe Section is compatible with large size Winnerwell wood stoves with 3.5" diameter pipes. The triple wall design prevents the hot flue pipe from directly contacting your exit point. The exterior diameter is 4.7 inches and is designed to fit perfectly with Winnerwell Silicone Flashing Kit. Compatible with large size Winnerwell wood burning stoves with 3.5" diameter pipes Made from 304 stainless steel Inner diameter: 3.5" Outer diameter: 4.7" Length: 17" Prevents the hot flue pipe from directly contacting the stove jack Designed to pair with the Winnerwell silicone Flashing Kit