The 2-Load Spa Control System is a reliable pneumatic controller built to manage one two-speed pump, an air blower, and an ozonator, making it an excellent choice for retrofitting or upgrading older spa systems. This system operates on either 115V or 230V single-phase power and includes a 5.5kW slide-style heater, allowing for adjustable installation height to accommodate various spa configurations. Its pneumatic air switch control offers simplicity and durability, while built-in safety features like hi-limit protection and visual diagnostics (VDS) provide added peace of mind. With all essential components included, including air buttons, tubing, and power cords, the CS6009-US1 delivers a straightforward and effective spa control solution.