The new Orbit Professional Series 4 in spray head brings rugged elegance to the irrigation market. It is ideal for use in residential and commercial landscapes and handles the most intricately designed, high-maintenance areas with ease. The spray head includes a quarter pattern nozzle. There are two seals on the cap, a radial seal and a face seal. There are two more seals on the riser making leaks a thing of the past. A pre-installed pressure regulator delivers a constant 30 psi, the precise pressure at which spray nozzles operate best. Delivers even and consistent water coverage over a nozzle's radius. No over spray or misting due to an over pressurized system.