Built for lasting performance in all environments, this high-efficiency rotary sprinkler conserves water by applying it slowly and evenly, which allows the soil to absorb more moisture and prevents runoff. The end result is up to 75% in water savings! Features a patented PRS pressure regulator built into the stem to optimize nozzle efficiency and eliminate wasteful misting, along with a molded wiper seal that halts leaks and ensures no dirt or grit gets inside the unit. Note: A pressure regulator is required on all sprays sold in the following states: California, Washington, Colorado, Hawaii and Vermont.