Vintage Sears Craftsman alternator generator, Model 580.321831, has a 3500 watt output. This unit is a single-phase machine with 115/230 volt capability at 3600 RPM. It has a pull-start engine, multiple power outlets on the control panel, and a metal frame with a handle. The exterior is light blue with visible rust and wear on the metal components and piping. Works well, $120 obo. Call or text 801-935-1624.