Ultra-Hi Flex-AllTM
Stailess Steel Chimney Liner

The Liners that's Preferred by ProfessionalsTM

  • Double Wall. Made from a single strip of .005 316-L Stainless Steel
  • Total overall thickness .012
  • Smooth wall on the inside increases the draft by 20%
  • 100% leakproof, air tight and unbreakable lock
  • All purpose for use on oil, wood and gas
  • Tested and approved to UL-1777 Zero Clearance (Tested by Conran Inspections Inc.)
  • Corrugated interlocked seamed on the outside to provide strength and flexibility
  • Available in diameters from 3" to 12" and in 4 1/2", 5 1/2" & 6 1/2" diameters with lengths up to 50 feet

Custom Oval

Our Flex-All stainless steel liner can be custom ovalized to fit your customers needs and job requirements. Round diameters from 3" to 10" can be ovalized to almost any dimensions. Please call for assistance on ovalizing.

Oval To Round

Five foot long, except for the last foot which is left round. Ideal for connecting stove inserts to fireplace. Available in 3 stock sizes and custom sizes.


SIZE I.D. Size O.D. Size
3" 3" 3 3/8"
3" 4" 4 3/8"
4 1/2" 4 1/2" 5"
5" 5" 5 3/8"
6" 6" 6 1/4"
6 1/2" 6 1/2" 6 3/8"
7" 7" 7 3/8"
8" 8" 8 3/8"
9" 9" 9 3/8"
10" 10" 10 3/8"
12" 12" 12 3/8"