Excellent choice for hard water, "dirty water", or reclaimed water irrigation systems Double-weighted arm for slower rotation and increased distance of throw Water Saver brass weighted PJ spray guide arm controls stream, prevents side splash onto buildings and walkways Diffuser screw breaks water into smaller droplets for uniform watering and allows up to 25% radius reduction 3" pop-up height to clear tall grass Retracts out of sight for high traffic areas Comes with pre-installed 3-gallon per minute nozzle Full circle (360°) or part circle (20° to 340°) coverage with infinite pattern adjustment 26' - 41' spray distance