DuraVent FasNSeal Flex 10" x 165' Stainless Steel Custom Flex Length heat-regulator Optimum efficiency :⁽⁶⁾⁽⁷⁾ 70%

Optimum efficiency :⁽⁶⁾⁽⁷⁾  70%

Note: Product Image Shows 24" Grate

Model 03577992 Material Made of Lightweight Vermiculite

50098 and 50096A Series

16" 16" Burn Area: 54" x 6”

DuraVent FasNSeal Flex 10" x 165' Stainless Steel Custom Flex Length heat-regulator Optimum efficiency :⁽⁶⁾⁽⁷⁾ 70%Made 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