DuraVent FasNSeal Flex 4" Stainless Steel Top Cover Plate w49.5 It has a better ability

It has a better ability to expand and contract then traditional concrete and much less likely to suffer from structural cracks

Classic two-tone design adds elegance to traditional fireplace decor

Product Type Damper Section Pipe Length 24" Diameter 8" Finish RAL 5009 49/42270 Powder Coat Documents & Files

Recommend installing Wall Straps at 4-foot intervals on vertical runs

DuraVent FasNSeal Flex 4" Stainless Steel Top Cover Plate w49.5 It has a better abilityMade 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