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Spa & Hot Tub Heater Assemblies and Manifolds

Watkins Caldera 4.0kW 15" Flo-Thru Heater Assembly with 8" Leads (26-3330-5S-K C2400-C3330-1A)

HydroQuip
Original price $179.99 - Original price $179.99
Original price
$179.99
$179.99 - $179.99
Current price $179.99
In stock

Heater Assembly, 15" 4.0kW, 240V, w/8" Leads, Caldera 73994 Caldera Highland Series Heater 26-3330-5S-K 4.0 KW 240 Volts 2.25" x 15" Stainless Ste...

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Original price $179.99 - Original price $179.99
Original price
$179.99
$179.99 - $179.99
Current price $179.99

Hydro-Quip 26-C3160-2S Double Barrel 4.0kW Low Flow Heater Assembly – Includes Sensors Balboa

HydroQuip
Original price $349.99 - Original price $349.99
Original price
$349.99
$349.99 - $349.99
Current price $349.99
In stock

Heater Assembly, Low Flow, Double Barrel, 4.0kW, Auto-Reset HL, 120/240V, w/ Sensors This Titanium Element is for use with the double barrel ...

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Original price $349.99 - Original price $349.99
Original price
$349.99
$349.99 - $349.99
Current price $349.99

Watkins 26-C3160-1S Double Barrel 6.0kW Low Flow Heater Assembly – Includes Sensors Balboa

HydroQuip
Original price $359.99 - Original price $359.99
Original price
$359.99
$359.99 - $359.99
Current price $359.99
In stock

Heater Assembly, Low Flow, Double Barrel, 6.0kW, Auto-Reset HL, 120/240V, w/ Sensors This Titanium Element is for use with the double-barrel lo-fl...

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Original price $359.99 - Original price $359.99
Original price
$359.99
$359.99 - $359.99
Current price $359.99

Balboa 5.5kW M7 Dual Sensor Flo-Thru Heater Assembly, 2 Studs, 26-55624-K

HydroQuip
Original price $199.99 - Original price $199.99
Original price
$199.99
$199.99 - $199.99
Current price $199.99
In stock

Heater Assembly, Dual Sensor, 5.5kW, Titanium, 2.25"x15", 2 Studs Designed as a replacement heater for spas or hot tubs Complete with sensors, it ...

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Original price $199.99 - Original price $199.99
Original price
$199.99
$199.99 - $199.99
Current price $199.99

Balboa 5.5kW M7 Flo-Thru Heater Assembly, Dual Sensor, 26-58083-K

HydroQuip
Original price $199.99 - Original price $199.99
Original price
$199.99
$199.99 - $199.99
Current price $199.99
In stock

Heater Assembly, Dual Sensor, 2.25"x15", 5.5kW Brand: HydroQuip Shipping Dimensions: 20 x 4.25 x 4.5 inch Weight: 3.45 pounds For Use With Balboa ...

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Original price $199.99 - Original price $199.99
Original price
$199.99
$199.99 - $199.99
Current price $199.99

HydroQuip Arctic Spa 5.5kW Flo-Thru Heater Assembly Titanium 48-9120-7P-K

HydroQuip
Original price $179.99 - Original price $179.99
Original price
$179.99
$179.99 - $179.99
Current price $179.99
In stock

Heater Assembly, 5.5kW, Titanium, 12", 316L, w/Cord, Arctic Spas Brand: Arctic Spas Heater Length: 12" Wattage: 5.5kW Features: Used on Arctic Spa...

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Original price $179.99 - Original price $179.99
Original price
$179.99
$179.99 - $179.99
Current price $179.99

HydroQuip 26-3226-1A-5T-K Low Flow Trombone Style Heater Assembly

HydroQuip
Original price $259.99 - Original price $259.99
Original price
$259.99
$259.99 - $259.99
Current price $259.99
In stock

HydroQuip Heater Assembly for Jacuzzi / Sundance Spas 6500-063 Replacement HydroQuip Heaterreplacemenent that is compatible with Jacuzzi J310, J315...

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Original price $259.99 - Original price $259.99
Original price
$259.99
$259.99 - $259.99
Current price $259.99

HydroQuip Gatsby Vertical 4.0kW Low Flow Heater Assembly 28-E0300-5T-K

HydroQuip
Original price $329.99 - Original price $329.99
Original price
$329.99
$329.99 - $329.99
Current price $329.99
In stock

Heater Assembly, Low Flow, Canister, Titanium 4.0kW, Gatsby Brand: Gatsby Spas Low Flow Features: Used on Gatsby Spas Wattage: 4.0kW Voltage: 2...

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Original price $329.99 - Original price $329.99
Original price
$329.99
$329.99 - $329.99
Current price $329.99

HydroQuip Saratoga 4.0kW Flo-Thru Heater Assembly 26-H3037-5S-K

HydroQuip
Original price $169.99 - Original price $169.99
Original price
$169.99
$169.99 - $169.99
Current price $169.99
In stock

Heater Assembly, Replacement, 2.25"X13.5", 3/4" Barb, 4.0kW, Saratoga Brand: Saratoga Spas Heater Length: 13.5" Wattage: 4.0kW Voltage: 230V

Original price $169.99 - Original price $169.99
Original price
$169.99
$169.99 - $169.99
Current price $169.99

HydroQuip Gatsby Vertical 5.5kW Low Flow Heater Assembly 28-E0300-7T-K

HydroQuip
Original price $329.99 - Original price $329.99
Original price
$329.99
$329.99 - $329.99
Current price $329.99
In stock

Heater Assembly, Low Flow, Canister, Titanium 5.5kW, Gatsby Brand: Gatsby Spas Low Flow Features: Used on Gatsby Spas Wattage: 5.5kW Voltage: 230V...

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Original price $329.99 - Original price $329.99
Original price
$329.99
$329.99 - $329.99
Current price $329.99

Gecko S-Class 4.0kW Flo-Thru Heater Assembly 26-0800-5S-KP C2400-0800

HydroQuip
Original price $199.99 - Original price $199.99
Original price
$199.99
$199.99 - $199.99
Current price $199.99
In stock

Heater Assembly, 4.0Kw, 15", SSPA w/Psi Brand: Gecko Heater Length: 15" Wattage: 4.0kW Voltage: 230V Includes Pigtails and Pressure Switch

Original price $199.99 - Original price $199.99
Original price
$199.99
$199.99 - $199.99
Current price $199.99

HydroQuip Balboa Style 4.0KW Titanium Flo Thru Heating Element (12-0102F-K)

HydroQuip
Original price $59.99 - Original price $59.99
Original price
$59.99
$59.99 - $59.99
Current price $59.99
In stock

Heater Element, 4.0kW, 240V, Titanium Brand: HydroQuip Element Type: 10" Flow-Thru Wattage: 4.0kW Features: Titanium Voltage: 230V HQP-851...

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Original price $59.99 - Original price $59.99
Original price
$59.99
$59.99 - $59.99
Current price $59.99

HydroQuip 26-3314-1-7T-K Assembly for Sundance Smart Heater 6500-310

HydroQuip
Original price $239.99 - Original price $239.99
Original price
$239.99
$239.99 - $239.99
Current price $239.99
In stock

The HydroQuip Heater Assembly is made in the USA and designed as a replacement for the Sundance 6500-310 Smart Heater used in Sundance Spas from 20...

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Original price $239.99 - Original price $239.99
Original price
$239.99
$239.99 - $239.99
Current price $239.99

HydroQuip Flange/Coil 5.5kW Titanium Heater Element 12-0010F-K

HydroQuip
Original price $99.99 - Original price $99.99
Original price
$99.99
$99.99 - $99.99
Current price $99.99
In stock

Heater Element, Flange/Coil, 5.5kW, Titanium Brand: HydroQuip Element Type: 5"x5" Square Flange Wattage: 5.5kW Features: Titanium Voltage: 230...

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Original price $99.99 - Original price $99.99
Original price
$99.99
$99.99 - $99.99
Current price $99.99

HydroQuip Universal 4.0kW Low Flow Vertical Rite-Fit Heater Kit, 27-V310-5T-K

HydroQuip
Original price $299.99 - Original price $299.99
Original price
$299.99
$299.99 - $299.99
Current price $299.99
In stock

Heater Assembly, Low Flow, Universal Vertical Kit, 4.0kW, Canister Brand: Therm Products Wattage: 4.0kW Voltage: 230V

Original price $299.99 - Original price $299.99
Original price
$299.99
$299.99 - $299.99
Current price $299.99

Balboa BP Series 5.5kW Flo-Thru Heater Assembly 26-G7512

HydroQuip
Original price $179.00 - Original price $179.00
Original price
$179.00
$179.00 - $179.00
Current price $179.00
In stock

Balboa BP Series 5.5kW Flo-Thru Heater Assembly

Original price $179.00 - Original price $179.00
Original price
$179.00
$179.00 - $179.00
Current price $179.00

HydroQuip Balboa Style 5.5kW Flo-Thru Heater Element (12-0100-K)

HydroQuip
Original price $69.99 - Original price $69.99
Original price
$69.99
$69.99 - $69.99
Current price $69.99
In stock

Heater Element, 5.5kW, 240V, Incoloy Brand: HydroQuip Element Type: 10" Flow-Thru Wattage: 5.5kW Voltage: 230V HQP-851-8004 12-0100-K

Original price $69.99 - Original price $69.99
Original price
$69.99
$69.99 - $69.99
Current price $69.99

HydroQuip Heatmax RHS 11kW Heater Assembly, 26-0082A-K

HydroQuip
Original price $249.99 - Original price $249.99
Original price
$249.99
$249.99 - $249.99
Current price $249.99
In stock

Heater Assembly, Heatmax RHS, "U" Shaped, 2.25", 11kW, RHS Specifications: Brand: HydroQuip Wattage: 11kW Features: U-Shaped Heater, Steel Heating...

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Original price $249.99 - Original price $249.99
Original price
$249.99
$249.99 - $249.99
Current price $249.99

HydroQuip Heatmax RHS Titanium 11kW Heater Assembly, 26-0082A-TI-K

HydroQuip
Original price $399.99 - Original price $399.99
Original price
$399.99
$399.99 - $399.99
Current price $399.99
In stock

Heater Assembly, Heatmax RHS, "U" Shaped, 2.25", 11kW, Full Titanium, RHS Specifications: Brand: HydroQuip Wattage: 11kW Features: U-Shaped Heater...

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Original price $399.99 - Original price $399.99
Original price
$399.99
$399.99 - $399.99
Current price $399.99

HydroQuip HeatMax 5.5kW Remote Spa Heater Assembly 230V, HEATMAX5.5

HydroQuip
Original price $449.99 - Original price $449.99
Original price
$449.99
$449.99 - $449.99
Current price $449.99
In stock

HeatMax Remote Heater Series The Hydro-Quip HEATMAX series heater is a basic “heater in a box” unit. When all you need is heat, this is the most pr...

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Original price $449.99 - Original price $449.99
Original price
$449.99
$449.99 - $449.99
Current price $449.99

HydroQuip HeatMax Titanium 5.5kW Remote Spa Heater Assembly 230V

HydroQuip
Original price $479.99 - Original price $479.99
Original price
$479.99
$479.99 - $479.99
Current price $479.99
In stock

HeatMax Remote Heater Series The Hydro-Quip HEATMAX series heater is a basic “heater in a box” unit. When all you need is heat, this is the most pr...

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Original price $479.99 - Original price $479.99
Original price
$479.99
$479.99 - $479.99
Current price $479.99

HydroQuip Heater Connection #10 x BP Wire Kit 48-0023B

HydroQuip
Original price $29.99 - Original price $29.99
Original price
$29.99
$29.99 - $29.99
Current price $29.99
In stock

Heater Connection Wire Kit, #10 x BP Connector Brand: HydroQuip

Original price $29.99 - Original price $29.99
Original price
$29.99
$29.99 - $29.99
Current price $29.99

Balboa BP 5.5kW Titanium Heater Assembly 26-58308-K

HydroQuip
Original price $229.99 - Original price $229.99
Original price
$229.99
$229.99 - $229.99
Current price $229.99
In stock

Heater, 5.5Kw, Titanium, BP, without Harness Brand: Balboa Water Group Heater Length: 15" Wattage: 5.5kW Features: Titanium Element Voltage: 230V ...

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Original price $229.99 - Original price $229.99
Original price
$229.99
$229.99 - $229.99
Current price $229.99

HydroQuip HeatMax 5.5kW Remote Spa Heater Assembly 230V, Salt Safe

HydroQuip
Original price $669.99 - Original price $669.99
Original price
$669.99
$669.99 - $669.99
Current price $669.99
In stock

HeatMax Remote Heater Series The Hydro-Quip HEATMAX series heater is a basic “heater in a box” unit. When all you need is heat, this is the most pr...

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Original price $669.99 - Original price $669.99
Original price
$669.99
$669.99 - $669.99
Current price $669.99

HydroQuip HeatMax 11kW Remote Spa Heater Assembly 230V, HEATMAX 11.0

HydroQuip
Original price $529.99 - Original price $529.99
Original price
$529.99
$529.99 - $529.99
Current price $529.99
In stock

HeatMax Remote Heater Series The Hydro-Quip HEATMAX series heater is a basic “heater in a box” unit. When all you need is heat, this is the most pr...

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Original price $529.99 - Original price $529.99
Original price
$529.99
$529.99 - $529.99
Current price $529.99

HydroQuip HeatMax 11kW Remote Spa Heater Assembly 230V, Salt Safe

HydroQuip
Original price $749.99 - Original price $749.99
Original price
$749.99
$749.99 - $749.99
Current price $749.99
In stock

HeatMax Remote Heater Series The Hydro-Quip HEATMAX series heater is a basic “heater in a box” unit. When all you need is heat, this is the most pr...

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Original price $749.99 - Original price $749.99
Original price
$749.99
$749.99 - $749.99
Current price $749.99

Heater Connection #10 x 4" Wire Kit 48-0023

HydroQuip
Original price $14.99 - Original price $14.99
Original price
$14.99
$14.99 - $14.99
Current price $14.99
In stock

Heater Connection #10 x 4" Wire Kit 48-0023 Heater Connection Wire Kit, #10 x 4", Pair

Original price $14.99 - Original price $14.99
Original price
$14.99
$14.99 - $14.99
Current price $14.99

HydroQuip Heater Connection #10 x 8" Wire Kit 48-0023A

HydroQuip
Original price $19.99 - Original price $19.99
Original price
$19.99
$19.99 - $19.99
Current price $19.99
In stock

Heater Connection Wire Kit, #10 x 8", Pair Brand: HydroQuip HEATER TO CIRCUIT BOARD CABLES HEATER LEADS 8"WIRES HYDROQUIP

Original price $19.99 - Original price $19.99
Original price
$19.99
$19.99 - $19.99
Current price $19.99

Gecko S-Class 4.0kW Flo-Thru Heater Assembly 26-0800-5S-K C2400-0800

HydroQuip
Original price $129.99 - Original price $129.99
Original price
$129.99
$129.99 - $129.99
Current price $129.99
In stock

Heater Assembly, Replacement, 2.25"x15", 4.0kW, Gecko, S Class Brand: Gecko Heater Length: 15" Wattage: 4.0kW Features: Used with Gecko S-Class...

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Original price $129.99 - Original price $129.99
Original price
$129.99
$129.99 - $129.99
Current price $129.99

Balboa BP100 4.0kW Flo-Thru Heater Assembly 26-G7413

HydroQuip
Original price $229.99 - Original price $229.99
Original price
$229.99
$229.99 - $229.99
Current price $229.99
In stock

Balboa BP100 4.0kW Flo-Thru Heater Assembly Heater Length: 15" Wattage: 4.0kW Features: Used on Balboa BP100 Systems Voltage: 230V Part Numbers...

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Original price $229.99 - Original price $229.99
Original price
$229.99
$229.99 - $229.99
Current price $229.99

Balboa BP Series 5.5kW Flo-Thru Heater Assembly HydroQuip 26-58306-K

HydroQuip
Original price $199.99 - Original price $199.99
Original price
$199.99
$199.99 - $199.99
Current price $199.99
In stock

Heater Assembly, Balboa, 5.5kW 240V, 2"x15", BP, w/Harness, G7512 Heater Length: 15" Wattage: 5.5kW Features: Used on Balboa BP Systems Voltage: 2...

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Original price $199.99 - Original price $199.99
Original price
$199.99
$199.99 - $199.99
Current price $199.99

HydroQuip Balboa Style 5.5KW Titanium Flo Thru Heating Element (12-0100F-K)

HydroQuip
Original price $59.99 - Original price $59.99
Original price
$59.99
$59.99 - $59.99
Current price $59.99
In stock

Heater Element, 5.5kW, 240V, Titanium Brand: HydroQuip Element Type: 10" Flow-Thru Wattage: 5.5kW Features: Titanium Voltage: 230V HQP-851...

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Original price $59.99 - Original price $59.99
Original price
$59.99
$59.99 - $59.99
Current price $59.99

HydroQuip Heatmax RHS Titanium 5.5kW Heater Assembly, 26-0082-F-K

HydroQuip
Original price $249.99 - Original price $249.99
Original price
$249.99
$249.99 - $249.99
Current price $249.99
In stock

Heater Assembly, Heatmax RHS, "U" Shaped, 2.25", 5.5kW, Titanium Specifications: Brand: HydroQuip Wattage: 5.5kW Features: U-Shaped Heater, Titani...

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Original price $249.99 - Original price $249.99
Original price
$249.99
$249.99 - $249.99
Current price $249.99

HydroQuip Heatmax RHS 5.5kW Heater Assembly, 26-0082-K

HydroQuip
Original price $199.99 - Original price $199.99
Original price
$199.99
$199.99 - $199.99
Current price $199.99
In stock

Heater Assembly, Heatmax RHS, "U" Shaped, 2.25", 5.5kW Specifications: Brand: HydroQuip Wattage: 5.5kW Features: U-Shaped Heater, Steel Heating El...

View full details
Original price $199.99 - Original price $199.99
Original price
$199.99
$199.99 - $199.99
Current price $199.99

HydroQuip HeatMax Titanium 11kW Remote Spa Heater Assembly 230V

HydroQuip
Original price $549.99 - Original price $549.99
Original price
$549.99
$549.99 - $549.99
Current price $549.99
In stock

HeatMax Remote Heater Series The Hydro-Quip HEATMAX series heater is a basic “heater in a box” unit. When all you need is heat, this is the most pr...

View full details
Original price $549.99 - Original price $549.99
Original price
$549.99
$549.99 - $549.99
Current price $549.99

HydroQuip Slipstream 5.0kW Low Flow Heater Assembly 27-SAA0C-5T-K CS6P52Y

HydroQuip
Original price $349.99 - Original price $349.99
Original price
$349.99
$349.99 - $349.99
Current price $349.99
In stock

HydroQuip Slipstream 5.0kW Low Flow Heater Assembly 27-SAA0C-5T-K Slipstream with Foot Brackets, Cord with Molded Plug Titanium Low-Watt Density H...

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Original price $349.99 - Original price $349.99
Original price
$349.99
$349.99 - $349.99
Current price $349.99

Gecko Water Pro Series 5.5kW Flo-Thru Heater Assembly 26-0071-K

HydroQuip
Original price $199.99 - Original price $199.99
Original price
$199.99
$199.99 - $199.99
Current price $199.99
In stock

Heater Assembly, Gecko Series, Water Pro, 2.25"x15", 5.5kW Brand: Gecko Heater Length: 15" Wattage: 5.5kW Features: Used with Gecko Systems Voltag...

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Original price $199.99 - Original price $199.99
Original price
$199.99
$199.99 - $199.99
Current price $199.99

HydroQuip Universal 5.5kW Low Flow Vertical Rite-Fit Heater Kit 27-V310-7T-K

HydroQuip
Original price $329.99 - Original price $329.99
Original price
$329.99
$329.99 - $329.99
Current price $329.99
In stock

Heater Assembly, Low Flow, Universal Vertical Kit, 5.5kW, Canister Brand: Therm Products Wattage: 5.5kW Voltage: 230V GATSBY

Original price $329.99 - Original price $329.99
Original price
$329.99
$329.99 - $329.99
Current price $329.99

Balboa 5.5kW Flo-Thru Heater Assembly 26-58134-K

HydroQuip
Original price $159.99 - Original price $159.99
Original price
$159.99
$159.99 - $159.99
Current price $159.99
In stock

Heater Assembly, Balboa Auxiliary, 5.5kW (Htr Only) Brand: Balboa Water Group Heater Length: 15" Wattage: 5.5kW Features: Used with Balboa Auxilia...

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Original price $159.99 - Original price $159.99
Original price
$159.99
$159.99 - $159.99
Current price $159.99

Balboa M7 4.0kW Flo-Thru Heater Assembly for BP100 26-G7411

HydroQuip
Original price $179.00 - Original price $179.00
Original price
$179.00
$179.00 - $179.00
Current price $179.00
In stock

Balboa BP100 4.0kW Flo-Thru Heater Assembly

Original price $179.00 - Original price $179.00
Original price
$179.00
$179.00 - $179.00
Current price $179.00

Balboa BP100 4.0kW Remote Heater Assembly 26-58438 G4311

HydroQuip
Original price $229.99 - Original price $229.99
Original price
$229.99
$229.99 - $229.99
Current price $229.99
In stock

Heater Assembly, Balboa Remote Heater- 4.0kW for BP100 (G4311) Brand: Balboa Water Group Heater Length: 15" Wattage: 4.0kW Features: Used on Balbo...

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Original price $229.99 - Original price $229.99
Original price
$229.99
$229.99 - $229.99
Current price $229.99

Keep your spa warm and inviting all year long with our hot tub heater assembly collection. A reliable spa heater makes it easy to enjoy the perfect water temperature every time, so you can relax without worry. These heater assemblies are built for durability and simple installation, helping your spa run smoothly season after season.

Whether you’re upgrading an old unit or replacing a part, our hot tub heater assemblies give you peace of mind and total control over your spa’s warmth. Plus, pairing your heater with the right spa controller can make managing your hot tub even easier.

Browse our selection and find the perfect spa heater to keep your hot tub cozy and inviting. With the right setup, all that’s left is to sink in, unwind and let your spa do the work.