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 Balboa BP2000G1 Rev2A PC Board $375.00 33-0045A-K HQ-Gecko, Y Series ye-5 PCB Circuit Board $239.00 Marquis MQBP20UX Circuit Board 600-6315 $489.00 X801096 Master Spas Circuit Board MS1500 Sale Price: $359.00 Original Price: $429.00 Sale Sundance PCB LED No Circ pump 2012 printed circuit board 6600-720 Sale Price: $479.00 Original Price: $599.99 Sale