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Chimney Pipe Adapters & Accessories

Specialty chimney parts enable you to make easy connections between the Rock Flex chimney liners and other chimney pipe components. Our specialty parts provide a perfect fit for stainless steel flue liners during the chimney liner installation process.

Boot adapters, double snouted tees, and thimbles are amongst some of the most popular and helpful chimney pipe adapters that we offer. Skim through our product selection below. If you don't see what you need, we can always make you a custom part for your specific installation!

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  1. Rectangle to Round Insert Adapter Boot
    Rectangle to Round Insert Adapter Boot
    As low as $119.99

    Make connections between round flex liners to inserts and stoves with rectangle or oval exhaust openings. Collar is angled back toward the damper. Low profile clears most fireplace openings.

  2. Off-Set Box
    Off-Set Box
    As low as $169.99

    This two piece adapter / off-set box is designed to allow you to adjust the insert front and back from inside the firebox. The adapter's top outlet receives the chimney liner.

  3. Custom Double Snouted Tee with Tee Cap
    Custom Double Snouted Tee with Tee Cap
    $239.99

    A tee with two take offs and a clean-out cap, it is designed to allow you to connect two appliances to one chimney liner. Select any two snout diameters from 3 inch through 8 inch.

  4. Free Flow Chimney Liner Increaser/Reducer
    Free Flow Chimney Liner Increaser/Reducer
    As low as $44.99

    Free Flow design is simply the best increase/reducer on the market. It comes with 2 female ends so you can crimp whatever end you need to on the job. Butt welded seams and expanded to perfection.

  5. Standard Reducer/Increaser
    Standard Reducer/Increaser
    As low as $44.99

    316L stainless steel increaser/reducer for chimney lining connections. Now you can adapt pipes of many different sizes with this little handy guy. The sizes below are not available in the Free Flow design, but are available as standard increase / reducers.

  6. Chimney Flue Extender
    Chimney Flue Extender
    As low as $74.99

    Need to offset 2 chimney liner caps adjacent from each other or extend your flue above the roof line? Fits perfectly on to the top plate collar to provide an 18 inch offset / extension.

  7. Tee Extension Slip Connector
    Tee Extension Slip Connector
    As low as $49.00

    The Tee Extension Slip Connector's male end slips inside the snout of our tee. It allows you to add 8 to 16 inches simply by sliding it in or pulling it out of the tee snout.

  8. Snout Adapter for Tee Snout
    Snout Adapter for Tee Snout
    As low as $24.99

    The Snout Adapter reduces the tee snout diameter, allowing you to attach a flexible chimney liner without having to crimp the tee snout. For 5.5 in. to 8 in. liners only.

  9. Insulated Chimney Thimble
    Insulated Chimney Thimble
    As low as $222.99

    The Insulated Chimney Thimble is intended for use in conjunction with any residential and building heating appliance burning gas, liquid, or solid fuels. The thimble adjusts to accommodate wall thicknesses 5" to 14".

  10. Safe-T Thimble
    Safe-T Thimble
    As low as $255.00

    This thimble is UL listed and allows you to pass your single wall stovepipe through a combustible wall. It provides protection from the heat when the connector is passing through a combustible wall.

  11. Square to Round Flexible Liner Connector
    Square to Round Flexible Liner Connector
    As low as $0.00

    Mates a dripless connection between square flex liner and the round opening or vertical pipe on your appliance.

  12. Oval to Round Connector for Flexible Chimney Liner
    Oval to Round Connector for Flexible Chimney Liner
    As low as $129.99

    Mates a dripless connection between oval flex liner and the round opening or vertical pipe on your appliance. The quick connect clamp on the oval end ensures a seal tight connection.

  13. Rectangle to Round Flex Liner Connector
    Rectangle to Round Flex Liner Connector
    As low as $0.00

    Mates a dripless connection between rectangle flex liner and the round opening or vertical pipe on your appliance.

  14. Cast Aluminum Clean Out Access Door
    Cast Aluminum Clean Out Access Door
    As low as $54.99

    Easy to install aluminum chimney cleanout/access door. These cleanout doors are perfect for indoor installation and durable enough to withstand the elements when used outdoors.

  15. Insulated Cast Aluminum Clean Out Access Door
    Insulated Cast Aluminum Clean Out Access Door
    As low as $89.99

    These insulated clean-out/access doors from Lyemance are available in three sizes. The clean-out doors are not recommended for smoke chambers. Easy to install aluminum chimney door.

  16. Gas Take Off Connector
    Gas Take Off Connector
    As low as $49.99

    Use this to connect a hot water pipe above an appliance. Make a hole in the horizontal pipe using a hole saw with your drill set to reverse. Seal with high heat mill pac and you're done.

16 Items

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Set Descending Direction