Continue shopping “Pentair Replacement MasterTemp Sta-Rite Max-E-Therm Pool Heater Thermistor 42001-0053S” has been added to your cart. Product Price Quantity Total × Pentair Replacement MasterTemp Sta-Rite Max-E-Therm Pool Heater Thermistor 42001-0053S $17.01 Pentair Replacement MasterTemp Sta-Rite Max-E-Therm Pool Heater Thermistor 42001-0053S quantity $17.01 Cart totals Subtotal $17.01 Shipping Shipping costs will be calculated once you have provided your address. Total $17.01 Proceed to checkout — OR — Calculate shipping Country / region: Select a country / region… United States (US) State / County: City: Postcode / ZIP: Update