Balboa Water Group Board, M2/M3 Deluxe & Standard - 54122

M-2/ M-3 Replacement Board This circuit board replaces M-2 and M-3 Serial Deluxe and Serial Standard product. This board includes features like 30 day battery backup and optional ORP protection. System type (deluxe or standard) and other features can be determined at the job site with jumpers on the board. The following topside(s) are compatible with the above circuit board: 58-138-1180, 58-138-1182, 58-138-1102, 58-138-1103, 58-138-1104, 58-138-1153 Balboa circuit boards are marked with a Chip Number that is located on a white label placed on the logic chip near the center of the board. It is imperative that this number is supplied to Horizon Spa & Pool Parts for proper circuit board match. Just because boards may look similar the programming may not allow it to work properly in all applications. Please review our Balboa Chip Cross Reference below.