The Rain Bird® 1800 Series Professional Pop-Up Sprinkler is the #1 commercial-grade irrigation spray brand in the world. Installed in parks and yards across the globe it is chosen for its reliability, heavy-duty materials and versatility. Precision spray heads and nozzles customize your watering system to cover virtually any configuration of lawn or garden - not the sidewalk or driveway. The 1800 Series has first-rate quality built in for reliable operation and long life. This sprinkler's Matched Precipitation Rate allows it to be used in any combination with other Rain Bird® fixed and adjustable pattern sprays. Additional 1800 Series features include a heavy-duty stainless steel spring to assure flush retraction every time. An exclusive co-molded wiper seal provides unmatched resistance to grit, pressure and the environment. A tapered pop-up neck helps to assure retraction in all soil types. The pre-installed Quarter Pattern 90 degree Dual Spray nozzle helps prevent dry spots at the base of the sprinkler. It can be adjusted downward in throw distance up to 25% simply by turning a screw on the top. Non-corrosive plastic and stainless steel construction provides a long life. A mesh filter screen protects the nozzle from clogging and maintains precise radius adjustment. No tools needed to change nozzles. Operates efficiently at low water pressure; 1/2" inlet size. Rain Bird® The Intelligent Use of Water™