Jacuzzi H136 Analog 1-Pump PCB with Phone Plug (51424) aquasun A volute like this is

A volute like this is useful because it forms the chamber around the impeller and helps direct water through the pump

Confirm the compatible valve series and part number before ordering

more complete control access

Supports cleaner and more dependable overall operation

Helps restore proper sealing performance on compatible equipment

Jacuzzi H136 Analog 1-Pump PCB with Phone Plug (51424) aquasun A volute like this isJacuzzi H136 Analog 1 Pump PCB with Phone Plug (51424) 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