This is a Balboa Temperature & Hi Limit Combination. This is a standard part and fits most Balboa 4 pin applications that are no M-7. It features a 4 pin connector will Curley Finger style ends...
This part is a Balboa Heater M7 Sensor. This Sensor comes with the wire, Connector, and The Screw down cap. It DOES NOT include the tube and the tube side mount. You will normally not need the sensor...
This Temperature Sensor Set has 1/4" probe widths on both probes.. This set usually found on tubs with no heater that uses a firestick or heat jacket to heat not a real heater... I have seen these on...