Watkins Caldera 4.0KW Low Flow Heater

Heater for Watkins Caldera spa models that use the Watkins 74912 trombone style heater with built in flow sensor. Comes with 3/4" barb to connect the heater to a circulation pump, April 2008 and earlier models have a 1" barb connection which would require an adaptor for this heater to fit. This heater has the built in internal pressure switch with a separate cord and plug. Heater is made by Balboa.

Compatible replacement for the following Caldera spa models:

• Utopia, 2001 to current,
• Aquatic Melodies, 2001 to current,
• Paradise Series, 2001 to current,
• Salina, 2012

2001 models must use adapter kit #75002 to convert the three prong plug to four prong for the Balboa systems in 2001.

Also replaces:

• 72226
• 72494
• 72718
• 6595
• 39588
• 7340
• SEH-4300-NHW-6595
• C3473-1
• IHH-4300-NHW-7340

Please Note:

All the replacement hot tub heater assemblies with safety sensors and flow switches we sell are shipped factory-new and factory-tested. Hot tub heater assemblies are non-returnable items as they cannot be resold. For further information, please refer to our return policy. All hot tub heaters come with the original manufacturer's warranty.