Sundance 780 2-Pump 60Hz Enclosed PCB, 05/2018+ (6600-404) alliedinnovation The multiple cross-reference identifiers give

The multiple cross-reference identifiers give this cartridge practical value because replacement filters are most accurately selected by matching recognized application numbers to the original cartridge family

or cleaning coverage has become unreliable and diagnostics point to the valve assembly

proper flow

That can make the repair feel more dependable than replacing the heating body alone while continuing to rely on sensor components that may already be part of the problem

Designed for the component location described in the product title

Sundance 780 2-Pump 60Hz Enclosed PCB, 05/2018+ (6600-404) alliedinnovation The multiple cross-reference identifiers giveSundance 780 2 Pump 60Hz Enclosed PCB, 05 2018+ (6600 404) is a replacement printed circuit board for compatible Jacuzzi or Sundance spa control systems. The circuit board manages key spa functions and must be matched carefully to the original system configuration, including pump count, voltage, model family, production range, and any circulation pump requirements. Use this board when a qualified technician has diagnosed a failed control board or when