This Waterway Neo 2100 Control Kit with Top Side Can Control 2-2 Speed Pumps, Blower, O3, and a 4.0 Kw Heater. Neo 2100 spa control systems use Electronic Thermo Sensing technology and are dual voltage 120/240V with AMP connections. With the addition of daughter boards the Neo 2100 supports 64 different configurations and is Wi-Fi ready. The topside control has easy menu navigation, is programmable, 7 day filter cycle, built in time clock and features a 1.8" color LCD display. This kit includes heater, and topside with cords. Minimum 10GPM.