
The Master Spas control has been discontinued. The replacement is part number X300739
Please Note: If the spa has more than 2 pumps and a circ pump, it will also need the daughter board, X801109
Master Spas - Control Pack, MS501X 825 3rd Sensor - X300734
X300734 Had since been discontinued by Master Spas. The manufacturer's official replacement parts will be sent, the X300739 pack & the X801109 daughter board.