DuraVent FasNSeal Flex 4" x 110' Stainless Steel Custom Flex Length w39.13 designed to deliver robust performance

designed to deliver robust performance time after time

just store it right inside Ranger

Model ISS2106AA Size 21" Series Radiant Heat Vent Type Single Vented Fuel Type Natural Gas Or Propane Certifications ANSI/RGA2/72 Weight 29lbs

Firebox Liner

DuraVent FasNSeal Flex 4" x 110' Stainless Steel Custom Flex Length w39.13 designed to deliver robust performanceMade 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