The Nelson 7503 High Speed head will quickly supersaturate your Har-Tru clay court. The Nelson 7503 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 53 ft. to 74 ft. with an output of 9.4 to 27.5 GPM. The Nelson 6503 has a 360 degree spray trajectory, 4" pop-up height and 1" NPT inlet. Made in the USA!