Pentair MasterTemp Pool Heater Transformer, 115/230V | 42001-0107S DE Filter Keep water chemistry balanced—extreme pH

Keep water chemistry balanced—extreme pH and high calcium can shorten cartridge life

swim to the area

controlled passes when collecting silt—fast scoops can stir fine debris into suspension

OEM-style replacement for 22″ Pentair sand filter systems

Lid O-ring

Pentair MasterTemp Pool Heater Transformer, 115/230V | 42001-0107S DE Filter Keep water chemistry balanced—extreme pHPentair Dual Voltage Transformer Kit for MasterTemp & Max E Therm Heaters 42001 0107S The Pentair 42001 0107S is an OEM dual voltage transformer kit used in the electrical system of select Pentair MasterTemp and Sta Rite Max E Therm pool spa heaters. This transformer converts incoming 115V or 230V line power to the proper low voltage required by the heater control circuitry for safe, reliable operation. Key Features Dual voltage (115 230V): supports