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 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: $349.00 Original Price: $399.99 Sale Marquis LZM2UR1B Circuit Board 600-6293 Sale Price: $588.00 Original Price: $599.00 Sale Marquis MQBP20UX Circuit Board 600-6315 $489.00 X801115 Master Spas Circuit Board MS 1600 Sale Price: $367.00 Original Price: $429.00 Sale