Toro 53893 Precision H2FLO 4-Inch Sprinkler Pop Up with Nozzle, Half Industry first-adjustable spray distance (radius) from 8 ft. to 15 ft. 42-Percent less water flow when compared to standard spray nozzles Fixed spray breakthrough  Patented H2O Chip technology creates high frequency oscillating streams to achieve coverage using 1/3 less water