- Lifetime Warranty
- Continuously Welded Spiral Corrugations Provide Strength and Flexibility
- Exclusive Ventinox Components and Welded Design Provides for Professional Installation
- Super-ferritic Alloy Strongly Resists Corrosion
- UL Listed to UL 1777 and ULC S635
- Engineered Excellence
- Includes DFSS Top Plate, Cap and Connector
Materials and Construction
Single-Wall .005" overlapped 316 stainless steel (totaling .010"). Overlapped to create smooth inner wall.
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.