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. CS504SCU
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.
cs504sz
SPECIAL ORDER ITEM with a 3-4 week lead time, or see/compare Balboa VS504 board 54638
