Pentair 42001-0053S Electrical Systems Thermistor Replacement Pool and Spa Heater (Pack of 4)
This post contains affiliate links. As an Amazon Associate I earn from qualifying purchases This thermistor is designed to use with Pentair Sta-Rite Max-E-Therm pool and spa heaters electrical system and also compatible with Pentair MasterTemp pool and spa heaters electrical system. Measures 6-inch length by 6-inch height by 6-inch width. Product Features Thermistor replacement