Portable Dialysis Water System

    Portable Dialysis Water System

    WRO 300 H Dialysis Water System

    Automated Heat Disinfection

    The first 510(k) Portable Reverse Osmosis System with Automated Hot Water Disinfection. The WRO 300 H has been designed to overcome the problem of microbiological build up in portable dialysis water systems that may have extended idle periods. By integrating an automated heat disinfection system into the unit, the WRO 300 H system is engineered and manufactured to be clean by design.


    automated heat disinfectionEnergy Efficient high recovery

What Makes the WRO 300 H Different? 
Ease of Use - Automated procedures to minimize caregiver involvement
Quiet Operation - Low noise level for regular and nocturnal treatments
Low Maintenance - Validated, Automated Hot Water or Chemical disinfection for bacteria control
Safety - Programmable auto-flushing and continuous product loop eliminates stagnation and ensures system cleanliness and readiness
Reliability - Consistent production of quality water on demand
Service & Support - Technical assistance, manuals, training DVDs for help when needed
Standard Features 
• Portable, compact and easy to operate with a very low noise level
• Additional automated procedures and internal diagnostic minimize home patients and caregiver involvement
• Programmable automated flushing and continuous product water loop eliminate stagnation and ensures system cleanliness
• Continuous product water loop minimizes water volume requirements for purified water production
• Automated processes ensure consistency with disinfection procedures
• End-to-end disinfection with qualified dialysis machines


WRO 300 H Specifications
Part Number
Feed Water Supply
Input0.8 gpm (3.0 l/min) required
Pressure20 to 45 psi (0.15 to 0.3 mPa)*
Temperature41 to 86°F (5 to 30°C)
QualityPotable water shall be used. Softener followed by carbon/particle filter ensures optimum performance.
Product Water
OutputMinimum 0.3 gpm (1.1 l/min) at 50°F (10°C) and 22 psi (0.15 mPa) outlet pressure
QualityDepends on inlet water quality. If potable water is used and WRO 300 H is maintained 
 according to the manual, the following minimum rejection rates will be obtained
 Total dissolved salts > 96 %
 Bacteria and pyrogens > 99 %
Drain Requirements
Operation0.32 ± 0.03 gpm (1.2 ± 0.1 l/min)
Peak Flow (Rinse)0.8 gpm (3.0 l/min)
Reverse Osmosis Membrane
MaterialPolyamide, thin film composite
ConfigurationSpiral wound
Disinfection & Cleaning
Heat DisinfectionUser initiated or automatic start of heat disinfection.
Chemical DisinfectionAutomatic dilution of disinfectant.  Rinse memory forcing the rinse program to start after chemical disinfection.
CleaningCustomized programs for different customer needs.
Power Supply
Main Voltage100, 115 or 220-240 V +/-10%, 50 or 60 Hz
Main Socket100V: max 1500 W, 115V: max 1380 W, 220-240V: max 1850W
WRO 300 Dimensions
DepthMax - 20.5 inches (520mm)  Footprint - 15.0 inches (380mm) 
Width - MaxMax - 8.1 inches (205mm)  Footprint - 7.3 inches (185mm)
Height & WeightMax - 22.2 inches (563mm) &72.75 lbs (33kg)
 WRO 300 H Manual - Operators Guide3027436
 Product Tech NotesDate
 TN225-WRO Inlet Hose Modification For Use With M1, M2 and Docking Station Carts10/24/2011
 TN230-WRO Mounting on Docking Station4/25/2012
 TN234-WRO 300-300 H New 4 3 CPU and Display9/19/2012
 General Tech NotesDate
 TN103-Hemodialysis Water Quality Standards-3002433g.pdf2/7/2009
 TN104-Nominal Rejection Characteristics of Reverse Osmosis Membranes-3002434c.pdf1/16/2009
 TN107-Resistivity Measurement-3002435c.pdf1/16/2009
 TN108-Flow and Volume Equivalents-3002436c.pdf1/16/2009
 TN111-Water Quality Conversion Table-3002437c.pdf1/16/2009
 TN112-Unit Conversion Tables-3002438.pdf1/16/2009
 TN113-Temperature Correction Factors for Thin Film Membranes-3002432e.pdf5/25/2011
 TN114-Unit of Measure and Their Abbreviations-3002409c.pdf1/16/2009
 TN115-Useful Formulas-3002430.pdf1/16/2009
 TN116-AAMI Analysis-3003016.pdf1/27/2009
 TN117-Concentrations of Toxic Effects to Dialysis Patients-3002431c.pdf1/16/2009
 TN118-Chemical Names, Common Names and Formulas-3002459c.pdf1/16/2009
 TN119-Most Commonly Asked Questions-3002460d.pdf10/20/2011
 TN120-Glossary of Terms-3002461.pdf1/16/2009
 TN122-Chemical Toxic Effects in Drinking Water-3002462c.pdf1/16/2009
 TN128-Wire Connections-3002978.pdf1/27/2009
 TN158-RO Cleaning Disinfecting Considerations-3003010d.pdf1/22/2010
 TN159-Alarm Set Point for RO Machines-3003013d.pdf2/3/2012
 TN195-RO Operation On High Temp Feed Water-3026689a.pdf4/20/2010
 TN212-Increased EBCT on Portable RO Systems-3026771d.pdf7/20/2012
 TN274-Carbon Block Filter Housing Replacement9/25/2015

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