DuraVent DuraFlex SW 4" x 100' Stainless Steel Custom Length w70.59 Cast iron facing for 18"-21"

Cast iron facing for 18"-21" vented sets

and no other warranties

Includes a stainless steel door for propane tank storage

Painted Black or Stainless Steel Burner Pan

DuraVent DuraFlex SW 4" x 100' Stainless Steel Custom Length w70.59 Cast iron facing for 18"-21"DuraFlex 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