Smooth Wall Preinsulated Liner

Pre-Insulated Forever Flex is manufactured from 430 stainless steel in the outer skin and 304L or 316L inner stainless steel liner.

It comes ready to install with Olympia Chimney Supply's non-carcinogenic Super Wrap Insulation Blanket already wrapped around the liner. It is convenient for the installer; saving both time and money.

The outside dimensions is 2" larger than the inside dimension.

Forever Flex Hybrid Chimney Liner is light years ahead of the competition.

  • Smooth interior for less turbulence and better draft
  • Provides Zero/Zero Clearance inside a masonry chimney
  • Manufactured from .010 stainless steel thickness
  • UL/ULC listed to UL 1777 & ULC S640 standards
  • Our 304L stainless liners are for wood-burning and pellets
  • Our 316L stainless liners are for wood, pellet, gas, oil, and coal
  • Free shipping
  • Click here for return policy regarding chimney liners and components