Underhill International Corporation

- Hi-Flo Proportional Injection System



The affordable solution for applying liquid or water soluble wetting agent, fertilizers, acids and soil amendments using your irrigation system. Designed for golf, sports fields, and large landscape commercial applications.


Size the tank needed for your application and connect into the irrigation mainline.

  • No Mixing
  • No Injection Limit
  • No Electricity Required
  • No Moving Parts


Easy Operation
Simply turn dial to the desired injection rate. Just pour wetting agent directly into tank and let your irrigation system do the work… saves man power!

(1-20 gallons per hour adjustment)

  • Patented, fluid-flow technology for precise delivery
  • Adjustable feed rates for various mixing ratios
  • Easy filling – no pre-mixing or pre-blending
  • No moving parts means no down time or maintenance

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