Unions, Heater
Hot tub heater unions provide the critical connection between your heater assembly and spa plumbing. Our selection includes unions in various sizes to fit most heater configurations. A good union seal prevents leaks and makes future heater servicing quick and straightforward. We offer competitive international shipping rates to buyers worldwide.
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2-Pack 2 Inch Hot Tub Heater/Pump Union Gaskets - 2.5" Lip - Balboa Gecko Compatible
HTPOFAmerica
MSRP: $8.99$6.99This 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...MSRP: $8.99$6.99 -
Spa Heater Union 2 1/2" Thread x 2" Slip with Matching Gasket - Hot Tub Parts
HTPOFAmerica
MSRP: $18.99$13.99This 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 2MSRP: $18.99$13.99 -
Discontinued 2 1/2" Thread X 1 1/2" Slip Heater Union with Gasket for Hot Tub Spa
HTPOFAmerica
MSRP: $18.99$13.99This component is no longer manufactured by the original supplier.MSRP: $18.99$13.99Qty in Cart: 0Quantity:Price:MSRP: $18.99$13.99Subtotal: -
Hot Tub Spa 1 1/2" Thread X 1" Slip Heater Union Video How To
HTPOFAmerica
MSRP: $15.99$9.99This part is a 1 1/2" Threaded X 1" Slip Heater Union with Gasket or O-Ring that matches Union.MSRP: $15.99$9.99 -
2 1/2 Inch Hot Tub Heater Union Nut Kit with Therm Gasket - Set of 2
HTPOFAmerica
MSRP: $64.99$37.99Complete 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,...MSRP: $64.99$37.99 -
2-Pack 2-1/2" Spa Pump Union T Gaskets - 3 5/8" Thread Fit - Replacement Seals
HTPOFAmerica
MSRP: $19.99$14.99These 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"...MSRP: $19.99$14.99 -
2 1/2" Hot Tub Heater Union Nut & Retainer Kit with Installation Guide
HTPOFAmerica
MSRP: $28.99$18.99Important: 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"...MSRP: $28.99$18.99 -
2 1/2" Hot Tub Heater Union Nut Kit with Therm Gasket - Installation Guide
HTPOFAmerica
MSRP: $31.99$21.99Important - 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"...MSRP: $31.99$21.99 -
Set of 2 Gate Slice Valves 1 1/2" & 2" Heater Unions for Hot Tub Spa - Installation Video
HTPOFAmerica
MSRP: $56.99$49.99This 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 featuresMSRP: $56.99$49.99 -
1 1/2" & 2" Spa Isolation Slice Valve with Heater Union Kit - Installation Guide Video
HTPOFAmerica
MSRP: $34.99$28.99This 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 mMSRP: $34.99$28.99 -
Pair of 1 1/2" Gate Slice Valves with Heater Unions for Hot Tub Spa - 115V Systems
HTPOFAmerica
MSRP: $57.99$48.99This complete kit includes two 1 1/2" Spigot X 1 1/2" Slip Gate Slice Valves paired with two 1 1/2" Heater UnionsMSRP: $57.99$48.99 -
1 1/2" Slice Gate Valve with Heater Union Kit - Spigot x Slip - Hot Tub Spa Service Valve
HTPOFAmerica
MSRP: $34.99$28.99This component features a 1 1/2MSRP: $34.99$28.99