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Advanced 3-Stage Under Counter Reverse Osmosis System. A More Aggressive Filtration Option. Find Out If Right For You

View RO3 Product Summary Tearsheet (PDF)

At A Glance

  • Three stage RO3 contains our unique two stages of advanced, high grade carbon filtration.
  • High-capacity 50 gallon per day reverse osmosis membrane.
  • Pre-carbon filtration to protect the membrane from chlorine & chloramine.
  • Post-carbon block filtration is unique to all EWS RO Systems for removal of lead and cysts.
  • Two carbon filters removes and reduces chlorine, chloramine, THMs, VOCs, PFAS, pharmaceutical residues, dyes, fuels, lead & cysts, while the RO membrane removes and reduces heavy metals, minerals, total dissolved solids, lead and cysts.
  • Enjoy the convenience and health of filtered water at the kitchen sink (or any sink).
  • City water or well water*.

Features & Benefits

  • No more wasting money on bottled water.
  • No more drinking unfiltered water with unpleasant tastes and odors**
  • Made in the USA.
  • Hassle-free filter replacement up to a year (rated for 1500 gallon capacity) based on usage and water conditions.


**Enjoy filtered water that meets your reverse osmosis preferences for taste (i.e. “flatter or a distilled” taste) with the removal of minerals (naturally found calcium & magnesium) and the total dissolved solids.


Not sure if Reverse Osmosis is right for you? Contact Customer Service for assistance from a real person.


*WELL WATER WARNING Well water is required to have independent, complete and proper testing of your well water to determine the proper course of action in order to specify the correct system(s).

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