DuraVent FasNSeal Flex 3" x 50' Stainless Steel Custom Flex Length d25.25 It also has a grease

It also has a grease collector at the bottom

The unit features a firebox that can hold up to 50 lb of cordwood

Enjoy the security of knowing your stove board meets all of the latest industry safety standards

The specified loading density varies between 7 lb/ft³ and 12 lb/ft³

DuraVent FasNSeal Flex 3" x 50' Stainless Steel Custom Flex Length d25.25 It also has a greaseMade from super ferritic stainless steel. Corrosion resistant. Manufactured with a sure seal locking seam for superior strength and flexibility. The smooth inner wall provides for no output reduction, allowing for full appliance efficiency, ease of cleaning and regular maintenance. The smooth inner wall optimizes gas flow, minimizes back pressure, and facilitates condensate management. Only flexible chimney liner listed to UL 1738 standard. What's