Overview Reviews Similar Products Product Description Coleman Circuit Board. Processor: 400R2 / 400R3. Balboa PN# 51764 Product Videos Custom Field Product Reviews Find Similar Products by Category Recommended Quick view Coleman Circuit Board 704/6R1C - 101-252 $724.95 Add to Cart Quick view Coleman Circuit Board 10R1B 101-053 $329.95 Add to Cart Quick view Coleman OEM Circuit Board 30XR1A - 101-071 $649.95 Add to Cart