Chapin?s 362 professional all-purpose hose end sprayer fits onto your standard garden hose. It has 16 mixing ratios to choose from so you make sure you?re spraying the right amount of chemical depending on your application. The durable brass mixing head holds up season-after-season and the built-in anti-siphon prevents backflow of chemicals in to your water supply. There?s only three simple steps: fill, set, spray. It automatically mixes liquid concentrate with water. It can spray up to 100-Gallons on a single tank. Made in the USA with global materials.