The Best, Winco Multi-Fuel Portable Generators a sustainable option to the everyday gasoline engine generator. These portable tri-fuel generators produce power using EPA certified engines for use with gasoline, natural gas (NG), and liquid propane (LP). Winco Multi-Fuel generators will supply reliable power when you need it most. Larger models offer a 4-wheel dolly kit and enhanced size fuel tanks standard. Will easily run essential items like pumps, sump pumps, furnaces, TV’s, and air conditioning units. Look for the many features and options available on these Winco Multi-Fuel Portable Generators all units. Made in the USA.