The Firman H07553 is a 9400-watt 50A powerhouse that comes with a PGMA G300 CO shutdown. This is an electric-start 74-dB monster that will run for 12 hours on its 8-gallon 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 5.5-foot propane hose for convenience when using larger propane tanks and includes a 10-inch wheel kit and folding handle.