7" X 25' DuraVent DuraFlex SW Stainless Steel Smooth Wall Liner - 7DFSW-25
7" X 25' DuraFlex SW Stainless Steel Smooth Wall Liner allows for full appliance efficiency due to its no-output reduction. The smooth wall construction promotes flue gas flow and minimizes the collection of deposits with its non-rigidness. DuraFlex SW is great for relining masonry chimney for wood and gas burning appliances.
WARNING: Carcinogens: This product can expose you to chemicals including Lead, which is [are] known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.