The Pneumatic Control Box 2-Load is a dependable and efficient spa control system designed specifically for spas using air-operated pneumatic controls. Built to support both 120V and 240V power sources, it’s a versatile solution for small to mid-sized spa installations. The integrated heater ranges from 1.0kW at 120V up to 4.0kW at 240V, allowing for flexible heating performance depending on the electrical setup. Its compatibility with a two-speed pump and single-speed blower, along with a built-in timer, makes it well-suited for basic spa automation and energy-conscious operation. Its compact design also makes it an ideal choice for retrofitting older spas without complex digital upgrades.