Hydro-Quip 36" 4-Pin Temperature Sensor (34-0203D-36-K) lighting and this generic version uses

and this generic version uses the O-101 reference

0 amps and 4

Premium choice for supported repair conditions

This part has practical value because the union and slip combination supports service-friendly plumbing while preserving intended compatibility in supported systems

Hydro-Quip 36" 4-Pin Temperature Sensor (34-0203D-36-K) lighting and this generic version usesThe Hydro Quip 36 inch 4 pin temperature sensor is designed for compatible control system applications where a longer temperature sensing lead is needed. A temperature sensor is useful because it helps the system monitor water conditions accurately, which supports stable heater behavior and better overall control response. This replacement is especially useful when the original sensor has failed, the lead has been damaged, or the supported system