Pentair iChlor Flow Switch

Pentair part 523100 is the replacement flow switch for the iChlor salt chlorine generator. It is the genuine Pentair part.

The flow switch is the safety that confirms water is moving through the cell. When it fails, sticks or fouls with debris, the iChlor reports no flow even with the pump running and stops producing chlorine. Replacing the switch restores the signal without replacing the cell.

This switch is specific to the iChlor. Pentair IntelliChlor systems use a different flow switch kit, so match the model before ordering. Shut off the pump and the power to the chlorinator before doing the swap.