The Nelson 6001 Pro gear drive rotary sprinkler head is ideal for surface irrigation of Har-Tru clay courts. This rotary sprinkler is reliable and easy to use for applications where the Nelson pop-up head does not pop-up high enough. The patented Nelson Click-Set® disk can adjust part-circle patterns in 5¡ increments from 40¡ to 310¡ or give a continuous 360¡ pattern. Nozzle radius adjustments can be made without removing the cap by using the universal adjustment tool. The rotary lawn sprinkler includes eight nozzles, allowing a radius from 30 ft. to 51 ft. with an output of 1.0 to 9.5 GPM. 20 to 65 psi. 7-3/8"H (closed). 4" pop-up height. 3/4" NPT inlet. Made in the USA!