Rain Bird 1804 4" Pop-Up Spray Head (1800 Series) Brand: Rain Bird SKU: 1804 Product Details The Rain Bird 1804 is the most popular irrigation spray head in the world, trusted by professionals for over 30 years. This 4-inch pop-up solves the problem of unreliable irrigation in demanding landscapes by utilizing a patented co-molded wiper seal that prevents "stick-ups" and leaks. Whether you are watering a small residential flower bed or a sprawling commercial turf area, the 1804 provides the rugged durability needed to withstand high water pressure and harsh environmental conditions, ensuring your nozzles perform exactly as intended every time the system cycles. Key Features: Patented Co-Molded Wiper Seal: Features an encased plastic "snugger" to provide unmatched resistance to grit, pressure, and the environment, eliminating "flush-by" leaks at pop-up. Heavy-Duty Stainless Steel Spring: Provides reliable stem retraction in all soil types, ensuring the head stays safely below mower height when not in use. Two-Piece Ratchet Mechanism: Allows for easy nozzle alignment by simply turning the stem—no tools required—and offers long-term durability. Pre-Installed Orange Flush Plug: Keeps the spray head clear of debris during installation and allows for easy system flushing before nozzle attachment. Specifications: Pop-Up Height: 4 Inches Inlet Size: 1/2" NPT Female Threaded Exposed Surface Diameter: 2 1/4" Operating Range: 15 to 70 PSI Construction Materials: UV-Resistant Plastic Body Corrosion-Resistant Stainless Steel Parts Co-Molded Rubber/Plastic Wiper Seal Installation & Maintenance Tips: Flushing the System: Always leave the orange flush plug in place until the pipes have been thoroughly flushed with water to prevent clogged nozzles. Nozzle Compatibility: The 1804 is compatible with all Rain Bird plastic spray nozzles (MPR, VAN, U-Series) as well as R-VAN rotary nozzles. Swing Pipe Usage: For the best protection against heavy foot traffic or lawn mowers, use "swing pipe" (funny pipe) to connect the 1804 to the lateral line rather than a rigid PVC riser. Common Uses/Applications: Residential Turf: The standard choice for front and backyard lawn zones where 4 inches of clearance is needed above the grass. Flower Beds & Shrubs: Provides excellent coverage for ornamental areas when paired with high-efficiency or variable arc nozzles. Commercial Landscapes: Proven to withstand the rigors of public spaces, parks, and high-traffic medians. Common Questions: Q: Does this head include a nozzle? A: No, the 1804 is a "body-only" unit. This allows you to choose the specific nozzle (fixed, adjustable, or rotary) that matches your lawn's unique shape and radius requirements. Q: My head is leaking from the top when it pops up. Do I need to replace it? A: Not necessarily. Often, debris is caught in the wiper seal. If the leak persists, the 1800 series is "top-serviceable," meaning you can replace the internal assembly without digging up the body. Q: Can I use this in low-pressure systems? A: The 1804 is rated down to 15 PSI, but for optimal performance and uniform watering, a pressure of at least 30 PSI at the head is recommended. With its legendary reliability and "set-it-and-forget-it" performance, the Rain Bird 1804 is the perfect solution for a healthy, green landscape that lasts for years.
