m-flex chimney liners. free shipping!
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Chimney Liner Pro is the exclusive retailer for National Chimney Supply, the original flex liner manufacturer.

For the past 23 years M-FLEX chimney liners and kits have been the premier choice for professional chimney sweeps. M-FLEX liners are made from the highest grade mill certified stainless steel alloy and are backed by a Lifetime Transferable Warranty. All our liners are designed to easily reline your existing chimney. They are UL-Listed and tested so they're ideal if your appliance burns wood, coal, oil, corn or gas. We also stock liner Insulation, Aluminum Liners, Stainless Steel Chimney Caps, Chase Covers, Multi Flue Caps and Chimney Repair Products like Crown Coat and Flash Seal.

Shipping is included. Your purchase helps Wounded Warriors. Call us with any questions.

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We strive to ship your orders within 24 hours. Although during our high season in the fall some orders can be delayed 48-72 hours. Learn more about our shipping and return policy. Or, learn more about Chimney Liner Pro.