Description
Coast Spa Circuit Board 55637 is a factory original replacement PCB circuit board for select Coast Spa/Balboa control systems.
2 pump circuit board for select model Coast SPas.
Now shipping new version 54638-01 that replaces the old 55637 board.
You will receive the updated Balboa board that is backwards compatible when ordering this sku.
Need a control panel that works with this circuit board? See 54539-01.
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