Flex-All™ Single Ply S/S Chimney Liner Coils

Discover the most flexible chimney liner on the market, engineered with extra ribs between each seam to provide over twice the flexibility of competing brands. Constructed with robust seven-ply quad-knurled locked seams, this liner ensures exceptional strength with a 100% leakproof, air- and watertight seal that won’t break. Made from premium 316L .006 stainless steel, it is suitable for venting oil, gas, wood, and pellet heating systems, making it a versatile, all-purpose chimney solution. Tested and approved to UL1777 standards, this liner guarantees safe, reliable performance. Backed by a Lifetime Warranty and proudly manufactured in the USA, it delivers unmatched durability, flexibility, and value—providing the best chimney liner solution available for your money.

What sets Flex-All™ apart from ordinary liners? It's all in the details. Featuring more ribs between seams than leading competitors, this liner boasts over twice the flex rating, allowing effortless maneuvering through the most challenging chimney configurations. The innovative seven-ply, quad-knurled locked seams create an impenetrable barrier—ensuring a completely leakproof, airtight, and watertight seal that stands up to extreme temperature swings, mechanical stress, and repeated heating/cooling cycles without fatigue or failure. Independently tested and approved to UL 1777 zero-clearance standards, Flex-All™ prioritizes safety and compliance for residential venting applications. Backed by our ironclad lifetime warranty, it's the professional-grade choice trusted by chimney experts nationwide for its exceptional durability and peace-of-mind protection. Key Features • Premium Construction: Single-ply .006" 316L stainless steel for maximum corrosion resistance and strength • Superior Flexibility: Extra ribs between seams provide over 2x the flex of standard liners, ideal for tight/offset flues • Ultra-Secure Seams: Seven-ply, quad-knurled locked design guarantees leakproof, airtight, watertight performance • Fatigue-Resistant: Built to endure thousands of thermal cycles without degradation • All-Fuel Versatility: Perfect for oil, gas, wood, and pellet stoves/inserts (excluding coal) • Safety Certified: Meets UL 1777 zero-clearance standards for worry-free installation • Lifetime Warranty: Unmatched coverage for lifelong confidence • Made in USA: American craftsmanship you can trust Ideal Applications Flex-All™ shines in real-world scenarios: • Relining aging or damaged masonry chimneys in homes • Venting high-efficiency oil furnaces, gas boilers, wood-burning fireplaces, or pellet stoves • Professional installs in crooked, narrow, or multi-story flues where standard rigid liners fail Always verify compatibility with your appliance manufacturer's guidelines and local building codes for optimal results. What's Included • One (1) Flex-All™ Single Ply 316L Stainless Steel Chimney Liner Coil—available in custom lengths and diameters to fit your exact needs • Comprehensive installation instructions with pro tips for seamless setup Fittings, top plates, chimney caps, tees, and adapters sold separately to allow full customization. Important Safety Notes • Not for Coal: This liner is optimized for oil/gas/wood/pellet only—coal applications require specialized materials • Code Compliance: Professional installation recommended; adhere to all local regulations, NFPA standards, and appliance specs • Pro Tip: Measure your flue precisely before ordering, and consider adding our matching accessories for a complete system Don't settle for less—elevate your chimney performance with Flex-All™ today. Experience easier installs, better drafts, and unbeatable durability that lasts a lifetime. Add to cart now and reline with confidence!