Add-it Fertilizer Injector

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  • Lauren - Jun 22nd 2018

    Time Saver

    We are a small farm and this has been a great addition to many of our stream fed irrigation systems.

  • Charles - Mar 8th 2014

    Saves time

    It was very easy to determine the proper mixture needed, and save A LOT of time fertilizing compared to manually spraying it.


This easy to use, hose threaded fertilizer injector is great for small gardens. It attaches directly to a faucet or garden hose and is used to inject fertilizer into a drip system or into a garden hose for hand watering.

Water pressure in the line forces a small amount of water into a tank where it mixes with the fertilizer and then re-enters the main line. There is no pressure loss through the Add-it, but a minimum of 10 PSI is needed for it to operate properly. Use with our top quality fertilizer line.

Important Notes:

  • One pint of fertilizer in the Add-it can supply up to 15 gallons of water.
  • The Add-it Fertilizer Injector is not rated for constant pressure. 
  • It should be placed after any automated timers or valves.
  • We recommend using back-flow prevention when injecting fertilizer into an irrigation system. Check locally for requirements in your area.


  • Flow Range: 30 - 240 GPH (gallons per hour)
  • Pressure Range: 10 - 60 PSI
  • Fertilizer Capacity: 1 Pint
  • Gallons Till Empty: 15 Gallons

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