
This board is discontinued. The recommended replacement is:
Balboa - Control, BWG VS510SZ, P1, P2, Bl, Oz, Lt, 4kW, 230v - G4154
Hydro Spas - PCB Circuit Board, Hydro Spa, HS55R1B - 52520
Hydro Spa circuit board 8 Pin phone style connection Chip: HS55R1B