The Heavyweight-Flex Chimney Liner
* Available in round and oval cross sections.
Unbreakable • Double Thick • Super Durable
Our Heavyweight-Flex liners are double the thickness of our smooth wall for ultimate strength and durability with 20% greater draft over equal size corrugated pipe.
- Double the thickness of our smooth wall
- Continuous seam for unbreakable strength
- Available in round or oval cross sections
- Fully covered under Lifetime’s warranty
- UL listed to 1777 zero clearance standard
We manufacture our liners right here in the USA. They are in stock and ready to ship with the following specs. If you need a size or length that is not shown below, please give us a call. We can customize any liner to fit your needs.
Diameters (inches): 3½", 4", 5", 5½", 6", 7", 8", 10", 12"
Lengths (feet): 20', 25', 30', 35', 40', 45', 50'
Steel Grades: 304L, 316L, AL29-4C