Tri-Fuel generator that can run on gasoline, propane, and natural gas. 10,000-watt generator, and its electric starting system provides easy operation. Max Pro Series 439cc engine runs coolly and efficiently thanks to its Phoenix Fat Head Block. Coupled with a transfer switch, it can act like a great alternative as a portable, whole home stand-by generator to get you through tough times after a big weather event. Comes with an engine oil bottle, oil funnel, spark plug wrench, a double open-ended wrench (10mm,12mm), and an LPG regulator with a hose holder.