Here is the Leisure Bay Spa 304759 Circuit Board, Balboa Part # 51793. Also Knw as LB102R1
Many Circuit Boards look alike, Please be sure to check the Chip Number and or Balboa Part Number to be sure this is the correct Board you need, as Boards are not a returnable item, only for warranty situations. If you have any questions, feel free to contact us, we are happy to help. Thanks.