Project Description

Select Purewater 300

Our Select range of water purification systems is compact, robust, simple to use and easy to maintain and available in six standard models: Analyst, edi 60, HP, Purewater 300, Fusion and Neptune Ultimate. 

The Select Purewater 300 is designed specifically for use with laboratory glassware washing machines, providing rinse water to a purity of over 1MΩ.cm at a flow rate of up to 48 litres per hour. It can be fitted with an on-demand pure water boost pump to provide up to 1.5 bar pressurised feed with a flow rate of up to 200 litres per hour.




Glassware washing machines

Common features of all our Select systems include:

  • Space-saving, dependable, bench top or wall mounted systems
  • RO Removes > 98% minerals and > 99% bacteria
  • Choice of production rates up to 48 l/hr
  • Optional external storage tanks up to 100 litres
  • RO Boost pump fitted as standard
  • Installation kit and all consumables included for first year’s operation
  • LCD colour touch screen panel
  • Visual and audible alarms included
  • Utilises carbon pre-treatment, RO and deionisation
  • USB port to download event data and upload software updates
  • Integral 20 litre storage as standard (excludes Neptune Ultimate)
  • Semi-automatic clean cycle.

Additional features for the Select Purewater 300:

  • Guaranteed > 1MΩ.cm water quality
  • Production rate up to 48 litres per hour
  • On-demand pure water boost pump for pressurised output
  • Additional high flow gravity outlet
  • WiFi connection.


Width (mm) 440
Depth (mm) 560
Height (mm) 750
Max shipping weight (kg) 28
Max working weight (kg) 51
Installation Requirements
Power Single Phase, 110-230V, +/- 10%, 50/60 Hz
Feed water Potable
Maximum TDS (ppm) 1000
Minimum inlet pressure – psi (bar) 30 (2.1)
Maximum inlet pressure – psi (bar) 90 (6.2)
Feed water temperature 1-35°C
Product Output (based on a feed water pressure of 4 bar)
@ 10°C (l/hr) 30
@ 25°C (l/hr) 48
Pure water storage 20 litre storage as standard (External 50 & 100 litre tanks available)
Display panel LCD – Colour touch screen
Pre-treatment cartridge
Reverse osmosis
Deionisation cartridge
Internal filtration
Point of use
UV lamp
Recirculation pump
Ultrapure polishing cartridge
Inorganics > 1MΩ.CM
pH* Neutral
Bacteria > 99% rejection (when measured directly across the membrane
Organics – TOC (ppb) < 50
Dispense modes Latched – hold – volumetric
Dispense flow rate up to 200 l/hour @ 1.5 bar

*pH of stored water may decrease due to absorption of free carbon dioxide

Process flow:



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