DuraVent FasNSeal Flex 9" x 160' Stainless Steel Custom Flex Length 77in 5” diameter flex comes in

5” diameter flex comes in rolls of 98 feet only

20"Dia x 4"Deep

we recommend that you coordinate installation with trained and/or certified professionals

Gateway 3500

Once your grate kit is set up

DuraVent FasNSeal Flex 9" x 160' Stainless Steel Custom Flex Length 77in 5” diameter flex comes inMade 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