Pentair Max-E-Therm/MasterTemp Thermistor (42001-0053S) deltauv Astral Pool side mount filter

Astral Pool side mount filter diffuser assembly kit

This kind of part is especially useful when the skimmer body remains serviceable and the weakness is isolated to the basket itself

Helps bring back dependable pack-level coordination

and clean connections before installation

or damaged to provide reliable performance

Pentair Max-E-Therm/MasterTemp Thermistor (42001-0053S) deltauv Astral Pool side mount filterReplace a worn temperature sensing component with this thermistor for compatible Max E Therm and MasterTemp heaters. The thermistor helps the control system read water temperature so the heater can cycle properly and maintain the selected set point. A failing thermistor may cause inaccurate temperature readings, erratic heater operation, or diagnostic errors. This replacement is a practical option when testing confirms the sensor is out of range or