DuraVent FasNSeal Flex 7" x 40' Stainless Steel Custom Flex Length sqft1850 Intake/Exhaust Extension Kit (54-inch kit

Intake/Exhaust Extension Kit (54-inch kit w/ 2 elbows

resistant seal between the galvanized outer jacket and flashing

Model 6LTC  Piece/carton 4 Finish Stainless Steel Dimensions 6" (dia

Model 810106 Size 6"

8" Wall Thimble Firestop

DuraVent FasNSeal Flex 7" x 40' Stainless Steel Custom Flex Length sqft1850 Intake/Exhaust Extension Kit (54-inch kitMade 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