DuraVent FasNSeal Flex 5" x 200' Stainless Steel Custom Flex Length btu36500 with no gas line

with no gas line

Kill switch for cover

Chimney blocks are one-piece interlocking components that make it easy to add an all-masonry chimney to your indoor or outdoor fireplace

Available in Grey

DuraVent FasNSeal Flex 5" x 200' Stainless Steel Custom Flex Length btu36500 with no gas lineMade 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