This Balboa circuit board is for Cal Spa M2/M3 Series hot tub control systems. Supports a 2-speed primary pump and secondary pump, blower, circ pump, ozonator/UVC, & light.
This Balboa circuit board is for Cal Spa M2/M3 Series hot tub control systems. Supports a 2-speed primary pump and secondary pump, blower, circ pump, ozonator/UVC, & light. Read Less