PURELAB flex 3
Power and flexibility. A small unit with big power capabilities
The PURELAB flex 3 is the ultimate system providing tap to ultrapure water in one single unit, and is uniquely designed around your needs. It combines ease of use with the accurate delivery of pure water. The flexible modular system can be configured to deliver the quality of water you need for your applications.

"Great system, fantastic support! Easy to use, and after sales care has been outstanding. Consumables are widely available and a snap to instal."

Features
- Space saving design The compact unit can be placed on the bench or can be wall mounted and has an integrated 7 liter reservoir filled by a 10 l/hr RO membrane, ensuring that water is always available.
- Fully Recirculating Ensuring the highest microbial purity and guaranteeing pure water at the point-of-use as recirculation of the water occurs from the reservoir right to the point of use.
- Real-time TOC Monitoring Provides complete confidence in organic purity and clear display at all times. The final quality sensor is placed at the entry of the flexible dispenser giving you peace of mind.
- Flexible dispenser The intuitive dispenser offers a clear display of the water purity for absolute confidence as you dispense.
- Easy to maintain The front doors ensure easy access to the consumables, making them quick and easy to replace.
- Data capture Data capture via USB for system performance validation and software updates.
Ideally suited for: Mass Spectrometry, Molecular biology, Electrochemistry, Atomic Spectroscopy, Liquid Chromatography, Cell cultures, Gas Chromatography, Immunochemistry, Spectrophotometry, Media / Buffer prep, General chemistry

Tech Specs
PRODUCT SPECIFICATIONS | PURELAB FLEX 3 | PURELAB FLEX 4 |
---|---|---|
Dispense flowrate | Up to 2.0 l/min | Up to 2.0 l/min |
Inorganics (resistivity at 25°C) | 18.2 MΩ.cm | 18.2 MΩ.cm |
Organics (TOC) | <5 ppb | <5 ppb * |
Bacteria | <0.001 CFU/ml ** | <0.001 CFU/ml ** |
Bacterial endotoxin | <0.001 EU/ml ** | <0.001 EU/ml ** |
pH | Effectively neutral | Effectively neutral |
DNase | <5 pg/ml | <5 pg/ml |
RNase | <1 pg/ml | <1 pg/ml |
Daily usage (max) | 10 l/day | 10 l/day |
Daily usage (min) | 1 l/day | 1 l/day |
Delivery flow rate | Up to 2 l/min | Up to 2 l/min |
PRODUCT SPECIFICATIONS | PURELAB FLEX 3 | PURELAB FLEX 4 |
---|---|---|
Dispense flowrate | Up to 2.0 l/min | Up to 2.0 l/min |
Inorganics (resistivity at 25°C) | 18.2 MΩ.cm | 18.2 MΩ.cm |
Organics (TOC) | <5 ppb | <5 ppb * |
Bacteria | <0.001 CFU/ml ** | <0.001 CFU/ml ** |
Bacterial endotoxin | <0.001 EU/ml ** | <0.001 EU/ml ** |
pH | Effectively neutral | Effectively neutral |
DNase | <5 pg/ml | <5 pg/ml |
RNase | <1 pg/ml | <1 pg/ml |
Daily usage (max) | 10 l/day | 10 l/day |
Daily usage (min) | 1 l/day | 1 l/day |
Delivery flow rate | Up to 2 l/min | Up to 2 l/min |
* Dependant on feed water
** With POU filter fitter

Consumables

Increase in airborne contaminants and potential recontamination of purified water

Potential recontamination of purified water and reduced flow rates

High levels of organics and inorganics remain in the water reducing the functional life of the DI pack

Weakly bound ions are released back into the water reducing resistivity

Uncontrolled bacterial contamination and TOC levels are not reduced

FAQs
- What is a PURELAB flex 3 system?
PURELAB flex 3 produces ultra pure water (Type I) directly from tap water.
- What type of applications are suitable for water dispensed from the PURELAB flex 3 system?
PURELAB flex 3 is designed for a range of applications including electrochemistry, atomic spectroscopy, ic (Ion Chromatography), liquid chromatography, immunochemistry, hplc, molecular biology, plant tissue culture, electrophoresis & mammalian cell culture.
- What are the benefits of the PURELAB flex 3 system?
PURELAB flex 3 offers customers a range of benefits from being intuitive and easy to use , easy to install and commission, flexible dispensing which allows customers to dispense water into a range of container sizes and shapes. It uses minimal lap space, is easy to operate and maintain and can be used for a wide range of lab applications. Other benefits includes real-time TOC monitoring which is calculated every 2-3 seconds to give a real time TOC reading for maximum assurance; water quality monitoring up to the point of dispense to help ensure valuable parameters are provided at all times and inbuilt periodic recirculation to help minimise biofilm build up which can affect some applications.
- What is the size of the storage reservoir in a PURELAB flex 3?
PURELAB flex 3 is designed with an integrated 7 litre reservoir.
- What is the difference between a PURELAB flex 3 and 4?
Unlike PURELAB flex 3, flex 4 does not have a RO membrane. It has to be fed with pre-treated water.

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Our ultrapure water does not contain any detectable endotoxins. This level of purity makes it a perfect reagent for laboratory work.