DuraVent FasNSeal Flex 4" x 135' Stainless Steel Custom Flex Length w4 please see the product manual

please see the product manual

018” outer wall

3/4″ Inlet – Flat stainless steel fire pit pan with welded nipple for connection of fire ring and gas source

Smaller bowl kit available

DuraVent FasNSeal Flex 4" x 135' Stainless Steel Custom Flex Length w4 please see the product manualMade 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