Included is a 4th stage taste and odor filter

Powered only by the hydraulic energy of brine water usually lost to the drain (i.e. no electricity required), the Permeate Pump forces product water into the storage tank, reducing membrane back pressure and maximizing available feed pressure. These pumps dramatically improve the efficiency of R.O. water production, reducing wastewater by up to 80%.

This pump can also bring storage tanks up to line pressure and then shut the system down when these tanks reach capacity, eliminating the need for a hydraulic shut-off valve.

Other benefits include:

  • Higher delivery pressures, faster R.O. water production, superior water quality, and extended filter/membrane life. 
  • Fills product tank up to 4 times more rapidly than conventional RO
  • No loss of recovery during the filling cycle
  • Better quality water out of your System 
  • Saves up to 85% of the water that normally goes to drain
  • Allows a greater tank pressure, up to 95% of line pressure
  • Effective for inlet water pressure as low as 30 psi
  • Increases membrane life, lowers “TDS creep”
  • Requires no electricity, powered by energy from brine water

Reverse Osmosis With Permeate pump


The Nelsen 4 and 5 stage, 50 gallon a day Reverse Osmosis systems feature double o-ring housings and a clear pre-filter housing for quick inspection of the sediment filter. Also features a 3.2 gallon NSF approved storage tank.  This system utilizes 1/4" quick connect fittings, 1/4" tubing, housing wrench, and a long-reach lead free faucet.  

Ratings and Certifications of the ERO 375 drinking water purification system:

  • Tested and Certified to NSF/ANSI Standard 58 by NSF International.
  • Rated at 50 psi, 77F, 750 ppm/TDS, product to storage tank.

Reverse osmosis refers to a chemical treatment process for water. The process forces water through specialized membranes and exerts a certain amount of pressure on it to remove foreign contaminants, solid substances, large molecules and minerals. Reverse osmosis is a water purification system used around the world to help improve water for drinking and cooking

Butler Water Systems offers a variety of installed reverse osmosis (RO) drinking water purification systems designed to remove contaminants from the water your family drinks. An installed reverse osmosis water treatment system can be tucked away under the kitchen counter or in the basement.   

Below are a few examples of Reverse Osmosis Units we offer.

ero 375

The EcoWater ERO 375 Series reverse osmosis systems will provide high-quality water for worry-free drinking and cooking. These state-of-the-art filters will improve the quality of water from wells or municipal supplies a like.











Benefits of Reverse Osmosis

Removes Contaminants including:












Removes odors and taste great!

Features of the ERO 375 drinking water purification system:

  • Block carbon pre-filter for the removal of sediment, chlorine taste and odor.
  • Enclosed filter for quick, dry, easy, twist on/off filter changes.
  • Carbon post-filter to remove tastes and odors.
  • High-volume, semi-permeable membrane.
  • Unique and elegant chrome or brushed nickel faucet styles.
  • Electronic monitoring system indicates when the filters and membrane need to be changed (available on two models).
  • The HERO 375 RO offers the ability to connect to EcoWater’s 3500 Series Water Conditioner/Refiner remote monitor with HydroLink® technology.

Reverse Osmosis