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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1.5 Inch Heater Split Nut Assembly Kit (Set of 2) with Gaskets for Spa Hot Tub Union Connection
HTPOFAmerica
MSRP: $18.99$14.49Complete assembly kit containing: (2) 1 1/2 inch heater flange split nuts, (4) mounting screws, and (2) gaskets designed for connecting 1 1/2 inch heater tubes to unions. The threaded union side...MSRP: $18.99$14.49 -
1.5 Inch Spa Heater Split Nut Assembly Kit with Gasket - Complete Installation Set
HTPOFAmerica
MSRP: $12.99$8.49This complete assembly is a 1 1/2 inch heater split nut kit featuring the split nut component, gasket, and (2) mounting screws designed for 1 1/2 inch heater unions measuring approMSRP: $12.99$8.49 -
1 1/2" Spa Heater Union O-Ring - 1 7/8" Center to Center Measurement
HTPOFAmerica
MSRP: $7.99$5.99This replacement O-ring is designed for 1 1/2" heater unions and measures 1 7/8" center to center.MSRP: $7.99$5.99
2 Pack - 2 1/2" Therm Style Heater Union Gaskets for Hot Tub Spa Pump Plumbing
HTPOFAmerica
MSRP: $19.99$14.99This is a pair of 2 1/2" Therm style union gaskets designed for sealing heater or pump unions in hot tub plumbing systems.These gaskets are specifically sized at 3 1/4" O.D. x 2 3/4" I.D. with lip...MSRP: $19.99$14.99
2 1/2" Threaded x 1" 90° Barb Heater Union with Gasket for Hot Tub Spa
HTPOFAmerica
MSRP: $28.99$21.99This component is a 2 1/2" Threaded X 1" 90 Degree Barb Heater Union with Gasket designed for spa heating systems.MSRP: $28.99$21.99
Cal Spa 5.5kW Complete Heater Assembly - XL Heat Exchanger Retrofit Replacement with Replaceable Element
HTPOFAmerica
MSRP: $269.99$229.99This complete heater assembly delivers 5.5KW heating power and includes the tube, element, metal enclosure, and connection wiring. Engineered specifically for Cal Spa hot tubs as a superior...MSRP: $269.99$229.99
Complete 5.5kW Hot Tub Heater Assembly - Balboa Compatible with Dual M7 Sensors, Gaskets & Split Nuts
HTPOFAmerica
MSRP: $379.43$179.99This 5.5kW Complete Heater Assembly comes ready to install with everything included: heating element, tube, dual M7 sensors positioned at both ends, split nuts, and gaskets. Engineered for Balboa spa...MSRP: $379.43$179.99
2" 45° Spa Pump Union Heater Connection Assembly with Gasket - Global Hot Tub Parts
HTPOFAmerica
MSRP: $30.99$25.99This component is a 2" 45° Heater Connection Assembly with Pump Union & Gasket. This union assembly features a dual-connection design: one end bonds permanently into a 2" fitting, while the opposite...MSRP: $30.99$25.99
Gecko SSPA S-Class 4.0kW Complete Heater Assembly - Soldered Tab Configuration with Gasket Kit
HTPOFAmerica
MSRP: $259.99$189.99This is a Full 4.0KW Heater Assembly designed for Gecko SSPA and Spa Builders Pack systems. The complete assembly comes with the heating tube, element, pressure switch, split nuts, and all necessary...MSRP: $259.99$189.99
Gecko SSPA 5.5kw Complete Heater Assembly with Soldered Tabs, Pressure Switch & Gasket
HTPOFAmerica
MSRP: $259.99$189.99This is a Full 5.5KW Heater Assembly designed for Gecko SSPA and Spa Builders Pack systems. Your purchase includes the complete heating unit: Tube, Element, Pressure Switch, Split Nuts, and Gaskets...MSRP: $259.99$189.99
2 Inch Hot Tub Heater Split Nut Assembly Kit - Set of 2 with Unions & Slice Gate Valves
HTPOFAmerica
MSRP: $89.96$67.99This package includes a complete set of TWO (2) 2" heater connection assemblies, each containing: one split nut, two screws, one 2" slip x 2" threaMSRP: $89.96$67.99
2" Heater Union Complete Kit - Split Nut, Slip x Thread Union, Gasket & Screws
HTPOFAmerica
MSRP: $44.98$34.98This complete kit includes everything needed for 2" heater connections: 2" Heater Split Nut Assembly, 2" Slip X 2" Threaded Union, Gasket, and (2) Mounting ScrewsMSRP: $44.98$34.98