Great for running the RV while out on the road, or for keeping essential appliances going during a power outage, the Sportsman Series 4000 Watt Dual Fuel CARB approved Generator has the power and flexibility to handle the task. This generator runs on either unleaded gasoline or propane gas, so you can use whichever fuel is more easily available or affordable at the moment. With the Sportsman Series Dual Fuel Generator, you get the long lasting, clean burning advantage of propane gas, plus the familiar and easy to find benefits of unleaded gasoline. With 4000 peak watts and 3500 rated watts the Sportsman Series Dual Fuel Generator is a powerful generator than can handle the needs of most contractors, homeowners and recreational activities. Equipped with four 120-volt outlets, a single 120V RV outlet, and a 12 volt DC outlet for battery charging, this generator can handle almost everything you need for camping or tailgating. With a 50 percent load, the Sportsman Series 4000 Watt Dual Fuel Generator can run for 10 hours on a full tank of gasoline (3.6 gallons) and 12 hours with a full 20 lbs. LP cylinder (the common gas grill type, not included). A 5-foot propane fuel hose with a regulator is included for your added convenience. The 7 HP engine is surprisingly quiet; it runs at less than 69 Db. The Sportsman Series 4000 Watt Dual Fuel Generator is ideal for anyone who needs affordable, flexible, and portable power. Unfortunately, this model cannot be converted to operate with natural gas.