The Ortho Dial N Spray Hose End Sprayer makes it easy to spray liquid concentrates such as weed killers, insect killers, fungicides, and fertilizers by applying the exact amount every time, with no mixing, measuring, or mess 3 spray patterns deliver the precise amount of treatment where needed: 1) broadcast is perfect for large areas, 2) jet reaches high places or tough rinse jobs, and 3) shower is light enough for gentle vegetation and flowers 14 dilution settings automatically mix from 1 tsp to 8 oz per gallon of water The ergonomically designed trigger, extended-grip handle, rotating hose connector and anti-backflow device that prevents product from going back into the water system make applying product simple and efficient The multi-use, hose-end sprayer provides a simple lawn solution without mixing or mess in 3 easy steps