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Machines & equipment for sale

Elga Purelab 15 Prima RO Water Purification System

Used / Second Hand

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In stock now
Stock No
Prima 15
Year of Manufacture
Other Info
Grade 111 Medical quality unit
Our Central Warehouse, Aldridge, UK
External Dimensions (WxDxH mm)
1200 x 1000 x 1400


The PURELAB Prima is ideal for a wide range of applications including feeding ultra pure water systems, glassware washing, autoclaves and for use in environmental cabinets.

The Prima system is a complete package with Veolia water softner, Prima 15 RO unit, Buffer storage tank and variable output pressure booster pump for delivering up to 15 litres an hour.


  • Delivers up to 15 litres an hour of type III (RO) water
  • Up to 98% rejection of inorganics using reverse osmosis
  • Suitable for applications requiring type III water quality
  • Low operational and consumable costs
  • Compact size makes it suitable to be installed under a bench or mounted on a wall
  • Easy to maintain
  • Full service and validation support

The PURELAB Prima range from ELGA produces primary grade purified water from a potable source in a wide range of volumes for laboratory, medical and industrial applications. Using proven reverse osmosis (RO) technology, the PURELAB Prima is ideal for feeding ultra-pure water systems and for typical laboratory applications including glassware washing, a feed to autoclaves, and for use in environmental cabinets.

PURELAB Prima systems are compact in size and have sophisticated microprocessor monitoring which helps ensure optimum performance at all times – and you can rely on its easy, cost effective and convenient operation, with user-friendly controls, informative status displays, and simple maintenance routines

The PURELAB Prima range has been designed to give you full system control with continuous monitoring and display water quality and operational parameters, with adjustable audio-visual alarms and consumable change reminders to ensure trouble-free operation. The comprehensive status displays allow you to check temperature compensated conductivity, water temperature and production mode at a glance.

Additionally, PURELAB Prima 15 model features a unique state-of the-art GRID* control panel showing graphical illustrations of the operational mode, process flow path and reservoir water level, further simplifying the monitoring of information. They also incorporate an RS232 port so that you can make a permanent record of water quality and system parameters – essential for compliance with Good Laboratory Practice (GLP) guidelines.

Simple operation is a key element of the PURELAB Prima design. Each system features a large easy-to-use back-lit control panel with intuitive icons and a menu-driven system to guide you. Front-entry service doors enable you to quickly and easily replace consumables, whilst a simple sanitization regime helps maintain peak system performance.

The PURELAB Prima utilizes an integral bacterio static pre-filter cartridge to remove chlorine and gross particulate contamination. The Prima product family can operate from a wide range of potable water pressures. 


PURELAB Prima model 15
Performance Specifications
Inorganics – min > 90% rejection 
Inorganics – typical up to 98% rejection 
Organics1 > 99% rejection
TOC – typical2 < 100 ppb 
Bacteria3 < 5 CFU/ml 
Particles > 99% rejection 

Product Specifications

Dimensions Height: 460mm
Width: 410mm 
Depth: 270mm 
Weight PURELAB Prima 15: 12.5kg 

Operational Mode Power on 
Displays Process on 
Safety Features Power fail-safe 
Automatic level controls 
Audio-visual alarm warnings 
Low feed pressure shut-off

System Monitoring

RO permeate purity (µS/cm) Feedwater quality (µS/cm)
RO permeate temperature (oC) RO permeate purity (µS/cm)
Reservoir level – % full RO permeate temperature (oC)
Consumable remaining life indicator % Ion rejection
Consumable change reminder

Feedwater Specifications

Source Potable water Potable water
Maximum FI 10 1
Maximum Conductivity 1400 µS/cm
Free Chlorine <0.5 ppm 
Temperature 1-35oC 

Pressure Maximum

• without boost pump 6 bar (90 psi) n/a
• with boost pump 2 bar (30 psi) 

Pressure Minimum

• without boost pump 4 bar (60 psi) n/a
• with boost pump flooded suction 1 bar (20 psi)

Electrical details

elec. supply - 100-240v / 50-60Hz / 65vA

pdf icon Print / Download Elga Purelab 15 Prima RO Water Purification System Datasheet

Additional files

Photographs taken prior refurbishment. Our refurbishment service is not available on all machines.