Rain Bird 1804 Spray Body NSI 4 in. Pop Up with SAM Check Valve

Designed to deliver consistent, water-efficient performance even on challenging terrain, the Rain Bird 1804 Spray Body NSI with SAM Check Valve keeps every zone running clean, stable and efficient. With its Seal-A-Matic (SAM) technology that prevents low-head drainage, this spray body ensures uniform distribution and eliminates puddling while protecting system pressure—letting you get the full benefit of professional-grade irrigation in every landscape. Its rugged build, debris-resistant seal and dependable pop-up action make it ideal for residential or commercial applications needing reliable spray coverage without wasted water. Engineered for precision, the 1804 SAM maintains performance across slopes and grade changes by holding back up to 14 ft. of elevation pressure. Its 4 in. pop-up height gives clear spray clearance, while the durable body and stem design support long-term reliability. A bottom-inlet configuration, female NPT threading, and compatibility with Rain Bird nozzles ensure easy integration into existing systems. For landscapes that demand stable spray performance, this spray body helps maintain efficiency while reducing landscape damage and maintenance. With the Rain Bird 1804 SAM, you reinforce your irrigation system with a smart, dependable spray body designed to protect water efficiency and ensure consistent operation—quietly delivering the performance that keeps landscapes thriving.