Duravent Straight Pipe 3112 4"D X 12"H Stainless Steel 16-1/2"W x 13"H (back)

16-1/2"W x 13"H (back)

With 21 elements in 15 groups and a 7-blade aperture system

polypropylene

44'' W x 13

Rayon Lining

Duravent Straight Pipe 3112 4"D X 12"H Stainless Steel 16-1/2"W x 13"H (back)Duravent Straight Pipe 3112 4"D X 12"H Stainless Steel The Pellet Vent Double Wall Chimney Pipe adds 12" to the length of a 4" diameter system. It features a stainless steel inner wall that resists corrosion. Duravent is a venting system designed for stoves and inserts that use wood pellets and oil fuel. It is also built to vent biofuel products such as corn, switch grass, cherry pits, soybeans, coffee husks, to name a few. Rated for continuous feed