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  • 304L Heavy Flex Chimney Liner Kit - 7"
  • 304L Heavy Flex Chimney Liner Kit -7"

304L Heavy Flex Chimney Liner Kit - 7"

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The Heavy Flex 304L liners are recommended when venting wood or pellet burning appliances.


The Chimney Heavy Flex Liner Kits include all the essential components for a complete relining job. The base kit includes:

  • Cap with Screen and Wind Guard
  • Storm Collar
  • Support Clamp
  • 13" x 13" Top Plate
  • Heavy Flex Liner (select length)
  • Tee and Tee Cap


The 304L Heavy Flex Chimney Liner Kit - 5.5" is backed by our Lifetime warranty. Follow the simple maintenance requirements and this chimney liner will be the last one you install. Using our chimney liners will increase the value of your home as the warranty will transfer to the next occupants.


The included top plate and wind cap protect your chimney liner system and your roof from the elements. They stop water from entering into your home and help ensure the longevity of the liner system. Our exclusive top plate is resistant to sagging and leaking and will hold your Chimney liner system in place even in the strongest of storms.


Heavy Flex Liner provides the strength of rigid liner but while maintaining flexibility. This liner is so strong you could drive a truck over it! Heavy Flex Liner is designed to not just withstand the harsh conditions in the chimney but to also handle vigorous cleaning with metal bristle chimney brushes. Other liners can be punctured if a metal brush is used.




  • Material: 304L Stainless Steel
  • Liner Class: Heavy Flex
  • Type: Kit
  • Liner Diameter: 7"
  • Length: 25' | 30' | 35'
  • Thickness: .018"
  • Fuel Type: Pellet | Wood
  • Certification: UL 1777
  • Shape: Round
  • Items Included: Heavy Flex Liner, cap with screen and wind guard, storm collar, support clamp 13" x 13" top plate, tee with tee cap
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