Fits many HX70 & HX120 & MiniMax gas heaters built before 2001. Please contact us with details of your heater, preferably with photos, as there is another similar part to this. Hurlcon HX120 spa heater control board. Has 4 LEDs to display features of the heaters.
Please do not confuse with the later PCB that had red LED temperature display.
As all heaters that use these are now over 20 years old, we strongly suggest you consider a new heater. Contact us for more information.