Product Review

1804 Series 4 in.Sprinkler Spray (Pack of 10)Installed in parks and backyards across the globe, Rain Bird's 1800 Series is the #1 commercial-grade irrigation spray head brand in the world.Chosen for its reliability, heavy-duty materials and versatility, the 1800 Series has first-rate quality built in for reliable operation and long life. Their superior components and features make them the spray heads of choice for a wide variety of applications.Also available with Seal-A-Matic? (SAM) in-stem check valve option and patented PRS in-stem pressure regulator option.Features / Benefits Exclusive co-molded wiper seal features an encased plastic "cage" to provide unmatched resistance to grit, pressure and the environment. Additionally, the pressure-activated, multi-function seal design assures a positive seal without excess ?flow-by? which enables more heads to be installed on the same valve. Precision controlled flush at pop-down clears debris from unit, assuring positive stem retraction in all soil types. Strong stainless steel spring provides reliable stem retraction. Two piece ratchet mechanism on all models allows easy nozzle pattern alignment without tools and provides added durability. Pre-installed orange 1800 Pop-Top flush plug blocks debris from entering after flushing. Allows for easy nozzle installation. Constructed of time-proven UV-resistant plastic and corrosion resistant stainless steel parts, assuring long product life. All sprinkler components are removable from the top without special tools, providing for quick and easy flushing and maintenance of the sprinkler. Side and bottom inlets featured on 1806 and 1812 models. Five-year trade warranty.Specifications Spacing: 3 to 24 feet (0.9 to 7.3m) 3 to 18 feet with standard Rain Bird Spray Head Nozzles (MPR, VAN, U-Series). 13 to 24 feet with Rain Bird Rotary Nozzles Pressure: 15 to 70 psi (1.0 to 4.8 bar). Flow-by: 0 at 8 psi (0.6 bar) or greater; 0.10 gpm (0.02 m3/h; 0.36 l/m otherwise. Installation: side