The Gilmour Dial-A-Mix is designed to make mixing solutions a cinch for garden use. Use the dial to select the mixing rate in teaspoons, tablespoons, or ounces per gallon to mix chemicals automatically as you spray. The Dial-A-Mix affixes to your hose to spray up to 132 Gal of finished spray per filling, spraying up to 30 ft Unused chemicals can be returned to the original container for future use. An adjustable deflector allows solid-stream spray or a gentler, rain-like spray for milder applications. Gilmour's no pre-mix sprayers are easy to use. Concentrate is poured directly into sprayer. Simply set the dial to dilution rate and spray. When finished, pour unused portion back into origianl container. No measuring, no pre-mixing, and no waste.