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service or replace the internal components or entire assembly
to prevent siphoning back into the pump when the system is off
Fits Hayward multiport valve models such as SP0710
Use SCALEfree® upon filling a new pool
Pentair MasterTemp 125 Thermal Regulator | 474989 Pool Pumps service or replace the internalPentair Thermal Regulator for MasterTemp 125 Heater Water System 474989 The Pentair 474989 Thermal Regulator is an OEM replacement temperature regulating valve used in the MasterTemp 125 heater water system. It helps the heater maintain proper internal water temperature and flow characteristics during operation, supporting stable heating performance and helping protect internal components. Key Features OEM thermal regulator: designed to match the
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