With a two-stage, long-life turbo-drive motor, Melnor"s turbo oscillator has adjustable coverage that can vary from 874 to 3,900 square feet (maximum coverage is 58 by 68 feet). Adjusting the range or width is wonderfully easy--simply slide the yellow controls to manage your coverage. With flow control for fine adjustment, the sprinkler has 18 rubber reverse-trumpet nozzles, six of which have positive shutoff. Limited warranty.