We are a wholesale distributor of spa and hot tub parts. We sell exclusively to pool & spa professionals.  
707-586-9999
ELE09100070 Cal Spas Circuit Board, Chip Number: C2001R1C (Newer Revision May End In Any Letter). Balboa Part Number: 51470
NOTE: Please Check Your Chip ID Number On Your   Old  Circuit Board To Make Sure This Is The Correct Circuit Board For   Your  Spa. Also, Check The Balboa 5-Digit Number. This Number Is Located   On A  White Sticker And Always Starts With A "5". This Part Is   Non-Returnable,  Only For Exchange On Warranty.
Cal Spas Offers A Limited 30-Day Warranty On Their Circuit Boards.