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Upgrade to a PRO Liner

Flex King Pro incorporates smooth wall technology which reduces creosote buildup and increases draft by up to 20%. Flex King Pro is twice the thickness of most flexible chimney liners on the market.

flex king
Single Ply Liner

flex king pro
Flex King Pro
w/ Smooth Wall Technology


Select a category below
Flex King PRO - Chimney Liner
Smooth interior flexible chimney liner
(0 products / 4 sub categories)
Flex King - Chimney Liner
Single wall flexible chimney liner
(0 products / 6 sub categories)
Flex King Pro Max - For Wood
Heavy duty smooth wall, maximum performance and durability
(0 products / 2 sub categories)