Here is the Catalina Spa CAT100 Circuit Board, which replaces all CAT100 Boards, Chip Numbers CAT100R1A, CAT100R1B, CAT100R1C. Balboa Part Number 51692. Hope you enjoy the saving here at Spa Parts Guy!
Please Be sure to check the Chip Number and or Balboa Part Number to be sure this is the Catalina Board you need, as Boards are not a returnable item. If you have any questions, feel free to contact us, we are happy to help. Thanks.