M-Flex Liners

Our M-Flex liner, available in 316L/316TI Stainless Steel is designed to reline existing chimneys or be used in new construction.  Manufactured in the highest grade mill certified alloys.  It's unique manufacturing system used to make M-Flex, utilizes a continuous strip of stainless steel, interlocked and diagonally crimped to produces a gas and water tight lining system of superior strength and durability.  It's corrugated construction allows for expansion and contraction during the heat up and cool down periods, removing any stress on the system! (Transferable Lifetime Warranty)M-FLEX Aluminum Liner Kit

Available in:


  • 3" - 12" diameter
  • 5 foot Increments
  • 6",7",8" available in OD