Stephen Witt
+1 (719) 550-2059

Vantage® M21 Reverse Osmosis Systems

Reverse osmosis membrane technology for industrial applications.
Vantage® series single-pass 2.5-inch reverse osmosis systems are designed for a variety of small industrial and commercial applications requiring high quality equipment with a fast delivery and competitive price.

These pre-engineered, pre-assembled and factory tested units minimize installation and start-up time. With simple utility connections and easy to set up controls, the unit is ready for quick on-line service. Vantage RO systems serve process water generation industries such as Power, General Industry, Food and Beverage, Pharmaceutical, Microelectronics, Solar, Data Centers, Commercial facilities.


 Features and Benefits

  • Low energy TFC membranes to ensure optimum water quality. 
  • High pressure stainless steel rotary vane feed pump 
  • Non Code PVC RO pressure vessels 
  • Pressure relief protection 
  • PVC low pressure feed, product and reject piping 
  • Dry contacts are provided for pretreatment equipment and storage tank levels 
  • All alarm and shut down conditions are indicated on the control panel 
  • Compact footprint saves valuable floor space 
  • Quick equipment delivery keeps project moving fast 
  • Clean in place connections maximize system serviceability 
  • Comprehensive factory testing performed at our ISO9001 certified factory

 Product Technology

​Reverse osmosis uses a semi-permeable membrane to remove minerals and dissolved solids from water. RO can normally be considered economically attractive on water chemistries with 250ppm ≤ TDS ≤ 2000ppm.  Between 150 -250ppm TDS, local economical considerations and water chemistry will determine whether RO is a viable option.  Normally on waters with TDS < 150ppm, ion exchange without RO is feasible for TDS reduction.

A single pass reverse osmosis system typically removes 97% of the total dissolved solids (TDS) and 95% of naturally occurring organics. The water recovery and average membrane flux usually ranges from 65 to 80% recovery and 14 to 18gfd respectively with both being dependent on the water chemistry. 


Vantage M21 reverse osmosis systems come in four different capacities to meet the varied purified water production requirements of our customers.

For higher capacities please see our Vantage M41​ and Vantage MicRO reverse osmosis systems​.​
Model No.​​Flow Rates ​ ​ ​ ​ ​ ​ ​​​Dimensions​Weights ​ ​ ​
​M2​1-​Feed​ProductReject​​ ​​​​​Lengt​h 
gpmgphl/min​gpmgphl/min​gpm​​gphl/min incmin​​cm​in cm​​lbs​kgs


stephen.witt@evoqua.com Vantage® M21 Reverse Osmosis Systems