Overview Reviews Similar Products Product Description Cal Spas Circuit Board C1100 DIG/DUP Majestic Line. Processor: C1100R1E Or C1100R1D Balboa PN#: 50929 Product Videos Custom Field Product Reviews Find Similar Products by Category Recommended Quick view Cal Spas Circuit Board, C3000R1F 30 Day Warranty $475.95 Add to Cart Quick view Cal Spas Circuit Board, C2100R1C 30 Day Warranty $489.95 Quick view Cal Spas Circuit Board, 2200R1D 30 Day Warranty $379.95