DuraVent FasNSeal Flex 3" PolyPro Rigid to FasNSeal Flex Adapter sealant These premium duct cleaning brushes

These premium duct cleaning brushes are designed and manufactured for cleaning air ducts or other applications where a vigorous scrubbing action is not required

8 - Firebox Side

625" (B) x 1

10" to 12" Increaser

Allows long heating autonomy for pellet appliances

DuraVent FasNSeal Flex 3" PolyPro Rigid to FasNSeal Flex Adapter sealant These premium duct cleaning brushesMade 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