DuraVent DuraFlex SW 12" x 20' Stainless Steel Custom Length btu53800 Alternate between eight ember bed

Alternate between eight ember bed and flame colors

Model W2-4506B Product Type Elbow

4" x 12" Straight Rigid Pipe Length

Model 94203470HWSB Material Aluminum Diameter 3" x 4" Cap Size W 18" x D 18" Clearance UL and ULC listed to 1777 standard

DuraVent DuraFlex SW 12" x 20' Stainless Steel Custom Length btu53800 Alternate between eight ember bedDuraFlex SW is a smooth inner wall, flexible stainless steel chimney liner. The smooth inner wall provides for no output reduction allowing for full appliance efficiency. Smooth wall construction eliminates ridges that restrict flue gas flow and collect deposits. The lack of ridges facilitates cleaning and maintenance. DuraFlex SW is ideal for relining masonry chimney for wood and gas burning appliances. Listed to UL 1777. What's Included Length