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Liquidation Sale Watkins 5.5kw Heater [240v] [caldera Highland Series Heater] (c2500-c3330-1a) Collection [V1o7wTAQ]

$25.99 $83.99 -69%

Therm Products 5.5kW Heater [240V] [Caldera / Watkins] (C2500-C3330-1A)73994Housing ConfigurationStraightHeater Length15"Lead End Terminal Location5-3/4"Threaded Tap Orientation12 O`ClockThreaded Tap Location4-5/16" From Leading EndKilowatts1.5kW, 5.

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Therm Products 5.5kW Heater [240V] [Caldera / Watkins] (C2500-C3330-1A)

  • 73994
Housing Configuration Straight
Heater Length 15"
Lead End Terminal Location 5-3/4"
Threaded Tap Orientation 12 O`Clock
Threaded Tap Location 4-5/16" From Leading End
Kilowatts 1.5kW, 5.5kW
Voltage 115v, 230v
Sensor Stud Location 7-1/2"
Sensor Stud Orientation 9 O`Clock
Mounting Stud Type Fixed
Heater Size 2"
Heater Application Gecko
Special Features Grounding Stud

 

  • C2500-C3330-1A

 

Gecko M-Class


Stainless steel 2" x 15" 4.4kW/230v, replacement flow thru heater with 2" mbt split nuts.

Caldera/Watkins: Stainless steel, 4.0kW/230v low flow replacement heater. The heater has a pressure switch tap at 0 front the terminals and short leads on the heater terminals. Replaces Caldera/Watkins # 73994.

Therm Products has been a leader in the hot tub industry for more than 40 years. They are known by the trade names of Caldesso, TruHeat, Aquatemp Products, Related Metal Products (RMF), Thermcore or Therm Products. Their primary products include low flow and flo thru spa heaters, electric heater assemblies, heating elements, blowers, heat exchangers, residential & commercial rails, and UV generators. Therm Products are reliable and are some of the best built replacement products in the spa industry today.

WHY USE THERM PRODUCTS?

Therm Products have been a leader in the spa industry since the early 1970's. Being one of the world's leading supplier of hot tub heating products, they continue to be a strong company with outstanding products. They also offer electric heater assemblies, heating elements, blowers, heat exchangers, residential & commercial rails, and UV generators. They have a team of experienced and dedicated people looking forward to the challenges and opportunities the spa industry presents, and continue to develop their products looking towards the future.

Bath & Spa Superstore carries a large line of Therm Products, readily available for immediate delivery. If you have any questions about their products, please feel free to ask us for assistance. You can reach our Product Specialists via telephone, chat or e-mail during normal business hours.

What Our Customers Say

December 31, 2025

Absolutely no complaints!

The build quality is fantastic and the product is extremely efficient.

- Colt G..

December 31, 2025

Absolutely no complaints!

It's a very well-engineered and reliable product.

- Alia G..

December 31, 2025

Absolutely no complaints!

Very intuitive to use and the results are amazing.

- Emily W..

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