Rain Bird 12SAH High-Efficiency Mini Rotary Pop-Up Spray, 180&deg; Half Circle Pattern, 13' - 18' Spray Distance, 4" Pop-up Height 180 half circle pattern rotary sprinkler head with 4" pop-up height Reduces water use up to 30% over pop-up sprinklers Multiple rotating streams gently distribute large droplets to water uniformly and resist windblown overspray Slow distribution rate of 0.6 inches per hour is ideal for newly seeded areas, slopes and hillsides Extended 13' to 18' throw covers more area with fewer sprinkler heads to reduce system complexity Pressure-activated wiper seal and closed case design protect mechanism from creeping grasses and sandy soil Constructed of highly durable UV and chemical-resistant materials to assure long life 6-Inch pop up height Mini rotor for smaller yards and watering areas Pressure activated Wiper seal prevents excessive flow by water waste