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Heater for select Caldera spa models that use the Watkins 74912 heater. 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.
Features:
Replaces:
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