Rain Bird pop-up impact sprinklers are a popular tradition for underground watering systems; providing homeowners with convenience and reliability. Ideal for high traffic areas, they pop-up to water and retract out of sight when finished. This heavy-duty impact has the strength and performance of industrial and commercial products yet is easy to install and operate. Pop-up impact sprinklers are long-lasting and particularly well suited for performance with heavy-mineral content hard water and well water that can clog and corrode other sprinklers. An excellent choice for reclaimed water irrigation systems. Arm is double-weighted for slower rotation and increased distance of throw. Diffuser screw breaks water into smaller droplets for uniform watering and allows up to 25% radius reduction. Heavy-duty, high impact case with sturdy reinforced ribbed design. Rolled lip design aids in setting proper installation height, prevents grass and weeds from growing into head, and minimizes backwash. Includes (5) interchangeable color-coded Matched Precipitation Rate nozzles; Blue #8 nozzle comes pre-installed. No tools needed to change nozzles. 3-1/2" pop-up height helps clear tall grass. Patented pressure-activated wiper seal assures reliable pop-up and pop-down. Spray distance from 7.3m to 13.7m (24’ to 45’). Full circle (360°) or part circle (20° to 340°) coverage with infinite pattern adjustment. Combination 12mm or 19mm (1/2" or 3/4") bottom inlet and 12mm (1/2") side female connections offer more installation flexibility. Multiple nozzle options provide for all-gallonage flow with variable watering rates of 5.7L (1.5 gallons) per minute to 32L (8.4 gallons) per minute. Spacing from 7.3m to 13.7m (24' to 45') apart. Designed for wide pressure range from 25 to 50 PSI.