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    • Ventis 304L Stainless Steel Class-A Chimney
    • Ventis 316L Stainless Steel Class-A Chimney
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  • monessen
  • lock-top
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  • seal tight
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  • chim-a-lator
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  • Chimney Flue Liners
  • 316Ti All Fuels Chimney Fireplace Flue Liners
  • 4" x 15' up to 50' - Chimney Flue Liner (Only) 316 Ti Stainless Steel by Forever Flex
  • Chimney Flue Liner (Only) 316 Ti Stainless Steel by Forever Flex - 4"
  • Chimney Flue Liner (Only) 316 Ti Stainless Steel by Forever Flex - 4"

    4" x 15' up to 50' - Chimney Flue Liner (Only) 316 Ti Stainless Steel by Forever Flex

    Olympia

    MSRP:
    Was:
    Now: $271.40 - $955.36
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    SKU:
    227
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    Product Description

    4" Forever Flex 316Ti Stainless Steel Chimney Flue Liner — UL Listed, All Fuels

    Reline your chimney with the trusted Forever Flex 4" 316Ti Stainless Steel Chimney Flue Liner — a high-quality 316Ti flex liner that delivers full all-fuels protection at an excellent value. UL listed and backed by the Forever Warranty, this corrugated stainless liner is sold in lengths up to 50' so you can match it precisely to your chimney height. Ideal for gas appliances, pellet stoves, and small wood appliances.

    Key Features:

    • Full 316Ti Stainless Steel Construction — Titanium-stabilized 316 alloy stands up to wood, gas, oil, and pellet applications without corroding
    • 7-Ply Air- and Water-Tight Seam — Strong, leak-resistant construction that won't come apart under thermal cycling
    • Ten Corrugations Between Seams — Exceptional flexibility for feeding through tight chimney bends and offsets
    • UL Listed — Tested and certified to UL 1777 for safety and performance
    • Forever Warranty — Lifetime coverage from the manufacturer
    • All Fuels Approved — Wood, gas, oil, and pellet — one liner covers every common residential application
    • Excellent Value — Full 316Ti construction and lifetime warranty at a price below most pro-grade liners

    Why Choose Forever Flex?

    Forever Flex delivers the same full 316Ti titanium-stabilized stainless steel construction found in premium liners, paired with a strong 7-ply seam, ten corrugations between seams for excellent flexibility, UL 1777 listing, and a lifetime Forever Warranty — all at a price point that makes professional-quality relining affordable for homeowners and budget-conscious installers. When you want a quality 316Ti all-fuels liner without paying for premium-tier branding, Forever Flex is the smart choice.

    Specifications:

    • Brand: Forever Flex
    • Product Type: 316Ti Stainless Steel Chimney Flue Liner
    • Inner Diameter: 4"
    • Material: 316Ti Stainless Steel
    • Approved Fuels: Wood, Gas, Oil, Pellet
    • Listing: UL 1777 Listed
    • Warranty: Forever Warranty (Lifetime)
    • Length Options: From 15' up to 50' 

    Order the 4" Forever Flex 316Ti Stainless Steel Chimney Flue Liner today and reline your chimney with a UL-listed, lifetime-warranted 316Ti liner built to outlast the house.

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    Stock orders placed by noon, Central Time, Monday - Friday will normally ship within 2 days.  

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    Chimney Flue Liner (Only) 316 Ti Stainless Steel by Forever Flex - 4"
    Olympia
    4" x 15' up to 50' - Chimney Flue Liner (Only) 316 Ti Stainless Steel by Forever Flex

    ×
    Forever Flex Chimney Liner Installation & Maintenance Instructions

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