Rain Bird 5000 Series Rotors are ideal for medium to large-size lawns and evenly distribute water from 7.6m to 15.2m. Superior Distribution Uniformity. 5000 Series Rotors with Rain Curtain Technology are engineered to deliver a uniform spray pattern, giving you a consistently green lawn throughout. The larger water droplets produced by Rain Curtain technology prevent misting and airborne evaporation so the right amount of water is delivered to the right place, saving you water and money. Gentle close-in watering eliminates dry spots around the rotor, prevents seed washout and allows the turf to grow healthy with no matting or bending.