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 BP2000G1 Balboa PC Board, Genuine BP2000G1, 2A $299.00 Marquis LZM2UR1B Circuit Board 600-6293 Sale Price: $588.00 Original Price: $599.00 Sale X801096 Master Spas Circuit Board MS1500 Sale Price: $359.00 Original Price: $429.00 Sale MAS501S Master Spa Circuit Board X801024 Sale Price: $379.00 Original Price: $469.00 Sale