Pentair PCBA Controller | IntelliChem® Chemical Controller | 521319Z Water Levelers backwash until the water runs

backwash until the water runs clear

Neutralizes Chemical Odors: Leaves pool water smelling clean and fresh by masking chlorine and chemical smells

converting motor shaft energy into the flow and pressure that drives water through the system

Inspect the weir at the start of each season

CL and CV series filters

Pentair PCBA Controller | IntelliChem® Chemical Controller | 521319Z Water Levelers backwash until the water runsOEM Replacement Control Board for IntelliChem Systems The Pentair 521319Z is the OEM replacement PCBA (Printed Circuit Board Assembly) controller for Pentair IntelliChem Chemical Controller Systems. If your IntelliChem controller is displaying faults, failing to respond to commands, or has suffered a board level failure, this is the direct replacement control board for that system. IMPORTANT: LICENSED PROFESSIONAL INSTALLATION REQUIRED Electrical