Hot Tub and Spa PC Boards › Marquis MQL15UR1 Circuit Board 600-6302 Image 1 of 2 Image 2 of 2 Marquis MQL15UR1 Circuit Board 600-6302 $619.00 PCB, Marquis, Mql15Ur1 Brand: Marquis Spas Chip Number: MQL15UR1(x) Add To Cart Added! PCB, Marquis, Mql15Ur1 Brand: Marquis Spas Chip Number: MQL15UR1(x) Customers also purchased Sundance Spas PC Board, LX-10, with Circ Pump 6600-724 Sale Price: $565.00 Original Price: $639.00 Sale Sundance Spas 2014 880NT PC Board, 2-Pump, LCD, 2014 660-390 Sale Price: $749.00 Original Price: $849.00 Sale Balboa PC Board EL2000M3 / 53834-05 Sale Price: $289.00 Original Price: $399.99 Sale Coleman 100 Series Circuit Board 101285 $399.00 33-0045A-K HQ-Gecko, Y Series ye-5 PCB Circuit Board $239.00