Pentair
Corresponds with 2 in the diagram above.
2 Unions are Required for MasterTemp 125 Low NOx Pool Heater.
28. Display Board Only - IDXL2DB1930
Pentair Heater Wiring Harness (115/230V) - 461107
12. Air Flow Switch - 42001-0061S
5-C. LCD Display - 013640F
4-C. P. C. Board/Control - 013464F