Orbit 1/2" FNPT Quarter Circle Pop Up Sprinkler Head. It features a 1-3/4" riser, plastic head, solid brass insert nozzle, and brass flow adjustment screw. The adjustable flow screw allows you to reduce the spray pattern down to 75% of its maximum radius of 15 feet. This sprinkler head sprays a distance of 10' to 15' radius and rises 1-3/4" above the ground when in use, dropping into the riser when not. Made of high-quality plastic construction, it is suitable for outdoor irrigation use with cold water only. Recommended operating pressure is 30 PSI. Not for sale in California and other states that require pressure regulation.