DuraVent FasNSeal Flex 4" x 85' Stainless Steel Custom Flex Length light-gray Note: (FR-12S) is designed for

Note: (FR-12S) is designed for use with natural gas

giving you full control over your outdoor environment

Superior Fireplace

Perfect for enjoying evenings by the fire

(9mb) Product Height (in) 35

DuraVent FasNSeal Flex 4" x 85' Stainless Steel Custom Flex Length light-gray Note: (FR-12S) is designed forMade 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