Why should you only buy your DIY chimney supplies with Chimney Liner Depot? The Factory Direct Difference. Find out more!

HD stands for Heavy Duty

Flex King HD  is the ultimate lining system for tough jobs and wood burning systems. Perfect for all wood burning appliances, especially those with tight chimney clearances and less than perfect flue conditions.

Why it's the best?

  • Superior Durability
  • Easy to Clean
  • Minimal Creosote Build-Up
  • Excellent Draft
  • Takes Abuse Like No Other Liner

Select your kit type:

Flex King Heavy Duty the most durable, best valued flexible chimney liner