DuraVent FasNSeal Flex 4" x 145' Stainless Steel Custom Flex Length w65.31 giving a little extra boost

giving a little extra boost when it is close to reach the desired temperature and conserving energy when needed

Galvanized Steel Inner Diameter 14" Outer Diameter 17" Height 18" Technical Drawings & Dimensions

5" (D) Total Unit Height 46

The Flex 86LC/86RC

DuraVent FasNSeal Flex 4" x 145' Stainless Steel Custom Flex Length w65.31 giving a little extra boostMade 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