No measuring, no pre-mixing, no waste! The 3 Way Hose End Sprayer, a handy mixer sprayer, adds accuracy, efficiency, and convenience to garden spray jobs. Simply pour liquid fertilizer, pesticide, or herbicide concentrate into sprayer and attach to hose end. Rotate dial to choose from 4 application rates and 3 different spray patterns. While spraying, chemical concentrate is automatically mixed with water at the desired rate, and a built-in anti-siphon device prevents backflow. Comfortable on/off switch is located on the handle for easy operation both right and left handed.