Pentair Thermal Regulator Replacement, MT125 | 474989 Column or small debris

or small debris

Compatible Design: Works with various pool and spa systems

Using this part during a targeted repair reduces downtime and helps ensure proper fit within the skimmer

Used in spa builds or when replacing cracked or leaking jet housings

Water is leaking at the heater connection point

Pentair Thermal Regulator Replacement, MT125 | 474989 Column or small debrisWhat This Part Is Used For Pentair 474989 Thermal Regulator Replacement MT125 is a replacement thermal regulator for compatible Pentair MasterTemp 125 heater models. It helps manage water temperature flow through the heater assembly. Why This Part Matters A faulty thermal regulator can lead to improper heating or error conditions. Replacing it restores correct water flow regulation inside the heater. Proper thermal control helps protect internal