DuraVent FasNSeal Flex 3" x 190' Stainless Steel Custom Flex Length RF46315 The RC400 acts as a

The RC400 acts as a thermostat and can be used as a remote

condensation

5 gal Large Vocanic Cinders

Natural Gas assembly requires professional service

DuraVent FasNSeal Flex 3" x 190' Stainless Steel Custom Flex Length RF46315 The RC400 acts as aMade 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