The New EG series contains the EG4000, EG5000, and EG6500. WE have increased the power output of the previous EG3500 by 500 watts and expanded the lineup by offering a 6500 watt powerhouse. All model features:A full frame and full 6.3 gallon tank with fuel gauge design for added protection and long run times. Centralized controls to allow for easier operation of the unit. 120/240 Voltage Selection Switch for allowing total generator output through any of the 120 volt outlets. 20A circuit protection on both 120v outlets.