Ideal for use with Drip Irrigation Systems, Sprinklers, or Misters. The EZ-Flo Fertilizer injector is easily installed in a garden hose line for feeding of plants through a variety of end devices, such as a drip system, sprinkler, mister system, or hand-held spray nozzle. Attach to a standard exterior faucet with anti-siphon protection (hose bib), or connected after any valve on an existing drip irrigation system or sprinkler, as long as the unit is only under pressure while operating. To operate, fill the 2 gallon poly tank with any liquid or dry water soluble fertilizer, set any one of four flow rates, and turn on the water. It works up to a max. of 80 lbs. water pressure. EZ-Flo's patented flow technologies ensure that the proportion of fertilizer to water remains constant through the entire cycle.