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  • 3" DuraFlex Pro 25" Tee Kit - 3DFPRO-25KT

    In Stock. Ships in 2 business days.
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    Product Description

    DuraFlex Pro is the ultimate in flexible steel liners for strength and flexibility. It features 20% more stainless steel per foot compared to other liners on the market. Its extreme flexibility facilitates problem free installations where multiple offsets are needed. DuraFlex Pro is available in 3” through 12” diameters in lengths, kits and custom lengths. DuraFlex Pro is manufactured utilizing highly corrosion resistant 316 Stainless Steel. Listed to UL 1777 and ULC S635.


    • Diameter: 3"             
    • Construction material: Single wall .005" 316 Stainless Steel
    • Clearances: 0" to Masonry
    • Listings: Listed to UL 1777 and ULC S635
    • Kit Includes: DuraFlex SS Top Plate, DuraFlex SS Tee with Cap, and Duraflex Pro Liner

    Additional Information

    DuraFlex Pro ultra flexible relining for masonry chimney. Use with gas, wood pellet, oil, or wood appliances. Applications include: fireplace inserts, furnaces, boilers, and water heaters.

    Installation Instructions


    Chimney Relining Best Practices

    Chimney Relining For Gas Appliances

    Click here for Home Safety when relining chimneys for gas appliances.


    Weight (lbs) 9.00
    Brand DuraFlex AL, DuraVent,
    Model 3DFPRO-25KT
    Diameter 3 Inch
    Wall Construction Single Wall


    Warranty Information

    Manufacturer Limited Lifetime Warranty