Unscrew black nipple when connect the American standard threaded hosethe garden sprinkler come with a quick connector and black nipple,the black nipple may inset sprinkler, if you connect American standard threaded water hose, you need Unscrew the black nipple out, and then connect the American standard hose. if you connect with your traditional rubber hose ,then simply connect the garden sprinkler directly to use. Long Spray Diameter DistanceUp to 26ft-32.8ft with International Standard Pipes and Water Pressure(2.5bar, Max.4bar). Effective and Energy Saving Water Sprinkler Irrigation System - Patented design of water-saving device can be targeted to save water most by adjusting the water density, size and scope. Easy to use and quick installationThe lawn sprinkler Equipped with a quick connect adaptor in seconds to start watering instantly. even give your kids a happy summer. Premium Quality Built to last Automatic constant 360 degree rotating spray without other auxiliary power equipment just by household water supply pressure about the Garden Automatic Garden Lawn Sprinkler.keep on forever service. Every item we manufacture and sell comes with a hassle free unlimited servive.