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
Pre 2004 Maxetherm with single volt wire harness
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.