An oscillating sprinkler that includes a frame with a first boom and a second boom engaged therewith. The booms are oriented generally parallel to each other and each of the first and second booms rotates about an axis that extends along the boom's length of the respective first or second boom. The first and second booms rotate in opposite directions to each other and are synchronized so that they rotate toward each other or away from each other in unison. First and second booms are operatively engaged with gears that are driven by a water-powered motor. One or more valves may be provided to shut off or reduce water flow from one or both of the booms. The watering pattern from the booms is such that water tends to be more evenly distributed over a ground surface upon which the sprinkler is placed.
