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, 516 - 101-290 $469.95 Quick view Coleman Circuit Board 10R1B 101-053 $329.95 Add to Cart Quick view Coleman, Circuit Board, 600R1A - 101-275 $515.95