The Nelson 6503 High Speed head will quickly supersaturate your Har-Tru clay court. The Nelson 6503 includes a stainless steel piston, anti-drain valve and heavy duty spring for extra durability. The rotary lawn sprinkler includes eight nozzles, allowing a radius from 33 ft. to 60 ft. with an output of 2.3 to 12.6 GPM. The Nelson 6503 has a 25 degree spray trajectory, 4" pop-up height and 1" NPT inlet. Made in the USA!