The Spa Control 4 Load Kit with 4kW Heater & TP700 Topside is an ideal solution for upgrading or replacing your spa or hot tub control system. Featuring a 4kW heater, this system ensures quick and efficient water heating, while the TP700 topside control panel offers an intuitive interface with support for LED, color LCD, and touchscreens. With 7 relays and 32 different setup options, this kit supports the operation of 1-4 pumps, including advanced MicroSilk systems. The system is compatible with existing Balboa BP, VS, or EL systems, making installation seamless.