Yamaha generators have the longest emission engine durability ratings issued by the Environmental Protection Agency and the California Air Resources Board. Independent gasoline petcock helps reduce carburetor cleaning and repairs by eliminating stale gas in the carb. The EF3000iS is equipped with advanced features and is extremely quiet yet smartly priced. The EF3000iS includes Yamaha’s performance enhancing features, such as Inverter Technology, Smart Throttle and Noise Block. The EF3000iS is capable of producing clean, high-quality electricity with extremely quiet operation (53 dBA to 60 dBA). This unit also features a fresh, ergonomic design with easy control access. The EF3000iS features built-in wheels, so its remarkably portable, providing convenient power to the locations you need it most. Yamaha’s Oil Watch Warning System helps prevent engine damage from low oil and provides added peace of mind.