Rain Bird 1804 Spray Body NSI 4 in. Pop Up with PRS45 Pressure Regulator

Maintain reliable rotary nozzle performance in high-pressure zones with the Rain Bird 1804 Spray Body NSI 4 in. Pop Up with PRS45 Pressure Regulator. Built with Rain Bird’s patented in-stem pressure regulation, this 1800 Series spray body helps hold outlet pressure at 45 PSI to reduce misting, control water waste, and support consistent coverage even when inlet pressure fluctuates. Its 4 in. pop-up height suits turf and landscape spray applications, while the pressure-activated co-molded wiper seal helps prevent excess flow-by and keeps debris out during retraction. A strong stainless steel spring provides dependable pop-down, and the ratchet mechanism allows simple nozzle pattern alignment without tools. Constructed with UV-resistant plastic and corrosion-resistant stainless steel components, this no-side-inlet spray body is designed for long service life and easy top-access maintenance. With PRS45 regulation, WaterSense-certified performance, and compatibility with Rain Bird plastic spray nozzles, it helps deliver efficient irrigation with dependable zone consistency.