With the Impact Jet Pulsating Sprinkler, water gets distributed evenly on a circular coverage up to 4,200 square feet. Angular width can be selected as little as 20 degrees to 360 degrees for maximum 70 foot diameter. It is fully adjustable according to different watering requirements: arm speed can be controlled by screwing/unscrewing the brass diffuser screw, while water flow can be set by turning the orange knob on the top. The double-pronged galvanized steel spike can be easily pushed into any type of soil for enhanced stability. Operates with water pressure as low as 14.5 PSI up to 58 PSI. Includes quick-connect hose adapter with water-stop feature for automatic water shut off when sprinkler is removed from hose. Impact resistant, polypropylene construction; UV stabilized and weatherproof. Unit is 100% quality controlled during manufacturing process. 2-year warranty. Made in Italy. Should not be exposed at temperature below 37.4°F.