Pentair UltraTemp Defrost Sensor Probe Thermistor (473665Z) grundfos Designed for compatible pool and

Designed for compatible pool and spa equipment repairs

Amphenol plug for compatible Maytronics Dolphin cleaner applications

This Aladdin Pac Fab Challenger Go-Kit 5 (GO-KIT 5) is engineered for o-rings applications

The added handle also helps make removal and cleaning more convenient

Helps restore proper water movement through the assembly

Pentair UltraTemp Defrost Sensor Probe Thermistor (473665Z) grundfos Designed for compatible pool andThis defrost sensor probe thermistor is used in compatible Pentair UltraTemp heat pumps to monitor temperature conditions related to defrost control. Accurate sensor feedback helps the system determine when frost management is needed and supports proper heat pump operation in cooler or humid conditions. A failed or inaccurate thermistor can contribute to error codes, poor heating performance, or improper defrost behavior. Replacing the sensor is a