Installed in parks and backyards across the globe, Rain Bird’s 1800 Series is the #1 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 a Seal-A-Matic™ (SAM) check valve option and a patented PRS in-stem pressure regulating option.