HotSpring Spa '06-current Hi-Limit. This High Limit Thermistor is a safety device that will shut down the heater if the water temperature exiting the heater is too hot. This would indicate a "low water flow" condition.
Notice: The older style has two blue wires; the new one has two wires in one gray enclosure.
Fits these Hot Springs Spas:
Fits these Caldera Spas: Highland Series
C-Series 2006 - 2009
Olympia 2006 - 2009
Cumberland 2006 - 2009