AquaCal Water Pressure Switch, Part #STK15513
The AquaCal Water Pressure Switch, Part #STK15513, monitors water flow through your AquaCal pool heat pump to help ensure proper operation. It detects insufficient water pressure and signals the system when water flow is too low or interrupted, helping protect your heat pump from potential damage. Designed for reliable, precise performance, this replacement pressure switch is an essential component for maintaining safe and efficient pool heat pump operation.











































