The FIRMAN H07553 is a 9400 watt 50A powerhouse that comes with a PGMA G300 CO shutdown. This is an electric start 74dB monster that will run for 12hrs on its 8gal fuel tank and is California emissions certified. Our Max Pro Series 439cc engine runs cool and efficient thanks to its Phoenix Fat Head Block. All Hybrid Series run on gas or propane, giving you flexibility. The H07553 has a 5.5ft propane hose for convenience using larger propane tanks and includes a 10” wheel-kit and folding handle. Easy information is at your fingertips with a 3-in-1 data minder measuring Hrs, Volts, and Hertz. Note: Everything you need is in the box including: oil, funnel, operator’s manual, and spark plug wrench.