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Ultra-pure water for special applications
For Aquarium, reef tank, steam ironing, printing machines, humidifiers, spot free rinse, jewelry cleaning, etc.
Combining reverse osmosis and de-ionization processes, our RO+DI systems are able to transform your tap water into ultra-pure water similar to distilled water.

For example:
Tap water
(purity or TDS is about 300 ppm)
--> after Reverse osmosis process
(20 ppm) drinking water
--> after Deionization process
(0-3 ppm) Ultra pure water

Residential customers and online orders please go to FilterDirect for ordering replacement parts and filters for your RO system.

Click here to enlarge
RD-322
This system is a complete system ready to be installed.
  • RO+DI unit with All 6 stage , 6 filters  (ALL FILTERS ARE STANDARD SIZES)
  • Feed water adapter valve which connects to cold water supply under the sink
  • Drain saddle valve
  • Automatic shut off valve:
    • when your shut off the dispensing valve or when your own float valve closes, the automatic shut-off valve shuts off the water feed and drain, so prevent wastage of water going to drain.  And if you have your own large container and float control valve, this system would turn ON/OFF automatically to refill your container.
  • DI filter dispensing ball valve for your own container
  • color tubings
  • Installation Manual

This system is a RO+DI system it connects to the water supply, then it produces water.  You need to have your own container to collect the water since the system doesn't come with a tank.

  • The DI filter replacement period depends on the water quality of your tap water and how much DI water you are using.  Since we use refillable DI housing, you can purchase the DI resin to refill the filter. It costs less than buying filters
  • Easy installation:  if you can replace a kitchen faucet, then you can install this system.
  • This is a complete system with all filters, tubing, feed water adapter, drain saddle valve, installation manual.  Ready for installation.
  • 1st stage:  high capacity, 5 micron sediment filter, to remove sediment, rust, sand, (replace every 12 months)

    2nd stage:  high capacity carbon filter, coconut shell carbon block filter removes chlorine, taste & odor (replace every 12 months)

    3rd stage:  high capacity carbon filter, coconut shell carbon block filter further removing chlorine to ensure 100% removal of chlorine (replace every 12 months)

    4th stage:  US Membrane TFC-150 high rejection membrane: 100% Made in USA, Specially made for high purity applications.  Through our own testing using 417ppm and 70psi input tap water, this membrane has better rejection rate than Dow chemical Filmtec 75GPD and GE membranes.

    5th stage:  US Membrane TFC-150 high rejection membrane: 100% Made in USA, Specially made for high purity applications.

    6th stage:  20" large DI filter (de-ionized, de-mineralize filter), Nuclear grade, color changing DI filter with refillable cartridge.  The DI filter removes remaining of dissolved solids after RO system. A ball valve is included for dispensing DI water into open containers or to open tank.  GOOD for reef, aquarium, hydroponics applications.


    Click here to enlarge
    RO-260
    * RO260 Aquarium 260-300 GPD REVERSE OSMOSIS HYDROPONICS RO WATER SYSTEM + Bonus Pressure Gauge
    WaterGeneral Reverse Osmosis System for Hydroponics, fresh water aquarium, food processing, spot-free washing, light-commercial applications
    260 GPD or 10 gallons per hour
    10 to 30 ppm pure water, 95-98% rejection after our high quality membrane
    Two x 150GPD membrane in series
    Sediment and carbon filters, double the size of regular 10" cartridges
    Pure water to drain ratio is 1: 2
    Note:  260 to 280 gallons per day capacity is the maximum production rate of the system, actual production rate depends on input pressure and temperature.  For example, at 70psi and 60 degrees the system makes 250 gallons per day or about 10 gallons per hour.  Lower input pressure and temperature would decrease production rate.
    This system is a RO system. It connects to the water supply, then it produces purified water.  You need to have your own container to collect the water since the system doesn't come with a tank.


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