Call To Order: 877.234.PIPE

The Heavyweight-Flex Chimney Liner

Heavyweight-Flex 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

Available Specs

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

Liftime Loyalty - As True As Steel

Our customers remain loyal because we craft
the highest quality venting solutions while offering
unrivaled customer service for the best buying experience.