Pentair/Sta-Rite Maxetherm Transformer (P/N: 42001-0057S)
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Fits the Sta-Rite Maxetherm heater.
Located on the back of the control box.
Provides low voltage (24VAC) power to the heater control board, ignition control module and gas valve.
120/240V - 24VAC
Comes with a connection harness for older models with older blower connection.