The Toro 570Z Series spray heads are the ideal choice when it comes to meeting the needs of a WaterSense-certified product. Toro’s factory-installed pressure regulator eliminates water misting and fogging at the nozzle which can lead to rapid evaporation or water being blown away from the intended irrigation area. From the first to the last head the in-stem pressure regulator provides a steady outlet pressure of 30 PSI along with consistent spray head performance across the zone.