Overview Reviews Similar Products Product Description Balboa Circuit Board VS501SZ Replaces the following part numbers and more: 54378 54378-01 54378-02 54378-03 VS501SZ 3-60-0092 Product Videos Custom Field Product Reviews Find Similar Products by Category Recommended Quick view Balboa Circuit Board Emerald Spa $225.95 Quick view Balboa Circuit Board, EL8000 52640 $894.40 $699.95 Add to Cart Quick view Balboa Circuit Board 2M7DLX 2000LE $499.95 Add to Cart