DuraVent FasNSeal Flex 4" x 85' Stainless Steel Custom Flex Length light-gray Perfect for enjoying evenings by

Perfect for enjoying evenings by the fire

giving you full control over your outdoor environment

meets the strictest building codes

(9mb) Product Height (in) 35

DuraVent FasNSeal Flex 4" x 85' Stainless Steel Custom Flex Length light-gray Perfect for enjoying evenings byMade 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