Heaters and Related Parts

Heaters and Related Parts

Keep your hot tub or spa at the perfect temperature with our comprehensive selection of heaters and heating components. We carry complete heater assemblies, heating elements, heater manifolds, and related parts from top spa manufacturers. Whether you need a full heater replacement or just a component, we have you covered. We offer competitive international shipping rates to buyers worldwide.

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  • 4X Hot Tub Spa 2" Heater  or Pump Union Gasket Balboa Gecko ACC Video How To 4X Hot Tub Spa 2" Heater  or Pump Union Gasket Balboa Gecko ACC Video How To

    2 Inch Hot Tub Heater Pump Union Gasket 4-Pack | 2.5" Lip | Balboa Gecko Compatible

    HTPOFAmerica

    MSRP: $17.98
    $8.99
    This package includes Four (4) Standard 2" Heater Pump Union Gaskets featuring a 2 1/2" center-to-center lip design. These replacement gaskets measure 2 7/8" on the outer diameter with an inner diameter of approximately 2 3/16". The ridge lip that...
    MSRP: $17.98
    $8.99
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  • 3X Hot Tub Spa 2" Heater  or Pump Union Gasket Balboa Gecko ACC Video How To 3X Hot Tub Spa 2" Heater  or Pump Union Gasket Balboa Gecko ACC Video How To

    2 Inch Heater Pump Union Gasket 3-Pack - 2.5 Inch Lip - Balboa Gecko Compatible

    HTPOFAmerica

    MSRP: $13.45
    $7.99
    This package contains THREE (3) standard 2 inch heater or pump union gaskets featuring a 2 1/2 inch center-to-center lip. These gaskets measure 2 7/8 inches outer diameter with an inner diameter of approximately 2 3/16 inches. The lip designed to seat...
    MSRP: $13.45
    $7.99
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  • 2X Hot Tub Spa 2" Heater  or Pump Union Gasket Balboa Gecko ACC Video How To 2X Hot Tub Spa 2" Heater  or Pump Union Gasket Balboa Gecko ACC Video How To

    2-Pack 2 Inch Hot Tub Heater/Pump Union Gaskets - 2.5" Lip - Balboa Gecko Compatible

    HTPOFAmerica

    MSRP: $8.99
    $6.99
    This product includes Two (2) Premium 2" Heater or Pump Union Gaskets featuring a lipped design with 2 1/2" center-to-center measurement. These gaskets measure 2 7/8" outer diameter, approximately 2 3/16" inner diameter, and feature a ridge with 2 1/2"...
    MSRP: $8.99
    $6.99
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  • Hot Tub Spa 2 1/2" X 2" Slip Heater Union & Gasket How to Video Hot Tub Spa 2 1/2" X 2" Slip Heater Union & Gasket How to Video

    Spa Heater Union 2 1/2" Thread x 2" Slip with Matching Gasket - Hot Tub Parts

    HTPOFAmerica

    MSRP: $18.99
    $13.99
    This listing includes one 2 1/2" Thread X 2" Slip Heater Union complete with matching Gasket. This union connects 2" plumbing to a 2 1/2" heater flange. The slip side accepts 2" pipe or fittings for gluing (measuring approximately 2 3/8" across), while...
    MSRP: $18.99
    $13.99
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  • Hot Tub Spa 2 1/2" Slip X 1 1/2" Heater Union & Gasket How to Video Hot Tub Spa 2 1/2" Slip X 1 1/2" Heater Union & Gasket How to Video

    Discontinued 2 1/2" Thread X 1 1/2" Slip Heater Union with Gasket for Hot Tub Spa

    HTPOFAmerica

    MSRP: $18.99
    $13.99
    This component is no longer manufactured by the original supplier.This listing is for a 2 1/2" Thread X 1 1/2" Slip Heater Union complete with matching Gasket. This union accepts a 1 1/2" pipe or fitting on the slip (glue) side and threads onto a 2 1/2"...
    MSRP: $18.99
    $13.99
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  • Hot Tub Spa 1 1/2" Thread X 1" Slip Heater Union Video How To This is an example of this union used on a 1 1/2" Heater.. Note: Heater not included..

    Hot Tub Spa 1 1/2" Thread X 1" Slip Heater Union Video How To

    HTPOFAmerica

    MSRP: $15.99
    $9.99
    This part is a 1 1/2" Threaded X 1" Slip Heater Union with Gasket or O-Ring that matches Union.   The Union recieves a 1" pipe or fitting on one side that measures 1 1/4" Outside Diameter and then Screws to a 1 1/2"...
    MSRP: $15.99
    $9.99
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  • Set of(2) 2 1/2" Spa Hot Tub Heater Union Retainer Nut Therm Gasket Video How To Set of(2) 2 1/2" Spa Hot Tub Heater Union Retainer Nut Therm Gasket Video How To

    2 1/2 Inch Hot Tub Heater Union Nut Kit with Therm Gasket - Set of 2

    HTPOFAmerica

    MSRP: $64.99
    $37.99
    Complete 2 1/2" Heater Connection Kit - Pair IncludedThis comprehensive kit contains everything needed for professional heater tube installation: 2 complete sets, each featuring a 2 1/2" flange nut, split retainer ring, and Therm-style gasket designed...
    MSRP: $64.99
    $37.99
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  • Set Of (2) 2-1/2", Pump, Union, T Gasket, Fits Union that Measures 3 5/8 Inside Threads Set Of (2) 2-1/2", Pump, Union, T Gasket, Fits Union that Measures 3 5/8 Inside Threads

    2-Pack 2-1/2" Spa Pump Union T Gaskets - 3 5/8" Thread Fit - Replacement Seals

    HTPOFAmerica

    MSRP: $19.99
    $14.99
    These replacement gaskets come as a pair (2 pieces) designed for 2 1/2" pump or heater unions with approximately 3 5/8" interior thread measurement. Each gasket features precise dimensions of 3 1/4" O.D. x 2 3/8" I.D. with a 2 7/8" center-to-center lip...
    MSRP: $19.99
    $14.99
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  • 2 1/2" Spa Hot Tub Heater Union Retainer & Nut Video How To 2 1/2" Spa Hot Tub Heater Union Retainer & Nut Video How To

    2 1/2" Hot Tub Heater Union Nut & Retainer Kit with Installation Guide

    HTPOFAmerica

    MSRP: $28.99
    $18.99
    Important: Verify Measurements Before Ordering - This 2 1/2" size is uncommon and typically found only in swim spas with large 3" heaters or select smaller hot tubs. Most standard hot tubs use 2" heater unions, which are also available at Global. Please...
    MSRP: $28.99
    $18.99
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  • Spa Hot Tub Heater 2 -1/2" Union Retainer Nut and Therm Gasket Video How To Spa Hot Tub Heater 2 -1/2" Union Retainer Nut and Therm Gasket Video How To

    2 1/2" Hot Tub Heater Union Nut Kit with Therm Gasket - Installation Guide

    HTPOFAmerica

    MSRP: $31.99
    $21.99
    Important - Verify Size Before Ordering: This 2 1/2" heater union nut is uncommon in standard hot tubs. Typically found only in swim spas with large 3" heaters or select smaller tubs. The standard 2" size fits most applications. Please confirm your...
    MSRP: $31.99
    $21.99
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  • Set of (2) Hot Tub Spa Gate Slice Valve 1 1/2" &  2" Heater Union How To Video Set of (2) Hot Tub Spa Gate Slice Valve 1 1/2" &  2" Heater Union How To Video

    Set of 2 Gate Slice Valves 1 1/2" & 2" Heater Unions for Hot Tub Spa - Installation Video

    HTPOFAmerica

    MSRP: $56.99
    $49.99
    This complete set includes (2) 1 1/2" Spigot X 1 1/2" Slip Gate Slice Valves plus (2) 1 1/2 X 2" Heater Unions with Gaskets. Each valve features a 1 1/2" spigot connection that accepts pipe or fittings measuring approximately 1 7/8" OD on one end, while...
    MSRP: $56.99
    $49.99
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  • 1 1/2" & 2" Spa Isolation Slice Valve with Heater Union Kit - Installation Guide Video 1 1/2" & 2" Spa Isolation Slice Valve with Heater Union Kit - Installation Guide Video

    1 1/2" & 2" Spa Isolation Slice Valve with Heater Union Kit - Installation Guide Video

    HTPOFAmerica

    MSRP: $34.99
    $28.99
    This package includes one 1 1/2" Spigot X 1 1/2" Slip Slice Gate Valve paired with a 1 1/2" X 2" Heater Union complete with matching Gasket or O-ring. The valve features a 1 1/2" pipe connection on one end and a slip fitting on the opposite end...
    MSRP: $34.99
    $28.99
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