Rain Bird 1800 Series 2" Professional Series Pop-Up Spray Head. This adjustable pattern spray head offers 0 to 360 degrees of rotation, allowing you to customize your watering coverage. The high efficiency nozzle provides a larger droplet size and lower trajectory, reducing run times by 35%. It features a patented pressure-activated co-molded wiper seal, stainless steel reduction screw, removable grit filter, stainless steel retractable spring, and easy nozzle alignment. The 1/2" inlet size makes it compatible with most standard irrigation systems.