DuraVent FasNSeal Flex 4" x 105' Stainless Steel Custom Flex Length royal-blue and obtain able to enjoy

and obtain able to enjoy your fireplace in ways in which you never thought were possible

Brand DuraVent Series FasNSeal Model FSELB4508

4" x 6 5/8" to 4" x 7" flex vent

Button #5 controls timer setting to turn off fireplace at selected time

DuraVent FasNSeal Flex 4" x 105' Stainless Steel Custom Flex Length royal-blue and obtain able to enjoyMade 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