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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10-Pack 2" Spa Heater Pump Union Gaskets 2.5" Lip - Balboa Gecko Compatible
HTPOFAmerica
MSRP: $44.95$11.99This product includes a bulk package of ten (10) standard 2-inch heater and pump union gaskets featuring a 2 1/2" center-to-center lip design. These replacement gaskets measure 2 7/8" on the outer...MSRP: $44.95$11.99 -
2" Heater/Pump Union Gaskets for Hot Tub Spa - 8 Pack Set - Balboa Gecko Compatible
HTPOFAmerica
MSRP: $35.96$10.99This listing includes a complete package of eight (8) standard 2" union gaskets designed for hot tub and spa heater or pump connections. Each gasket features a 2 1/2" lip measurement (center to...MSRP: $35.96$10.99 -
2" Heater Pump Union Gaskets for Hot Tub Spa - 6 Pack | 2 1/2" Lip | Balboa Gecko Compatible
HTPOFAmerica
MSRP: $26.97$9.99This product includes a pack of six (6) standard 2" union gaskets designed for spa heaters and pumps, featuring a 2 1/2" center-to-center lip configuration. These replacement gaskets measure 2 7/8"...MSRP: $26.97$9.99 -
2 Inch Hot Tub Heater Pump Union Gasket 4-Pack | 2.5" Lip | Balboa Gecko Compatible
HTPOFAmerica
MSRP: $17.98$8.99This 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...MSRP: $17.98$8.99 -
2 Inch Heater Pump Union Gasket 3-Pack - 2.5 Inch Lip - Balboa Gecko Compatible
HTPOFAmerica
MSRP: $13.45$7.99This 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...MSRP: $13.45$7.99 -
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