Millipore Direct-Q 3UV-R Remote Water Purification System – Used and Refurbished
The Millipore Direct-Q 3UV-R Remote Water Purification System is a compact laboratory water purification system designed to produce both Type 1 ultrapure water and Type 3 reverse-osmosis (RO) water directly from potable tap water. Featuring reverse osmosis, ion-exchange purification, dual-wavelength ultraviolet treatment, and a convenient remote dispensing station, the Direct-Q 3UV-R provides laboratories with a versatile source of high-purity water for research, analytical testing, reagent preparation, and routine laboratory operations.
The Direct-Q 3UV-R produces reverse-osmosis water at a nominal rate of 3 liters per hour and delivers Type 1 ultrapure water with a resistivity of up to 18.2 MΩ·cm at 25°C when equipped with the appropriate purification cartridges and maintained under the manufacturer's recommended operating conditions.
Its integrated 185/254 nm UV lamp helps reduce organic contamination and microbial levels, making the system particularly useful for laboratories performing sensitive analytical and molecular biology procedures.
The remote dispenser allows users to obtain ultrapure water at a convenient location away from the main purification unit. This flexibility is especially beneficial for laboratories with limited bench space or dedicated reagent preparation areas.
This Millipore Direct-Q 3UV-R, catalog number ZRQSVR3WW and AIE inventory number 5654G, is offered used and refurbished by American Instrument Exchange with a 90-day warranty.
Important: New purification filters and cartridges are NOT included. Customers must purchase the appropriate replacement consumables separately before placing the system into laboratory service.
Key Features
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Millipore Direct-Q 3UV-R laboratory water purification system
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Produces both Type 1 ultrapure and Type 3 reverse-osmosis water
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Nominal Type 3 RO water production rate of 3 L/hour
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Type 1 ultrapure water resistivity up to 18.2 MΩ·cm at 25°C
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Ultrapure water dispensing flow rate up to approximately 0.7 L/min
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Integrated 185/254 nm ultraviolet lamp for organic and microbial reduction
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Reverse-osmosis and ion-exchange purification technologies
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Remote ultrapure water dispensing station
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Operates using suitable potable tap water
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Electronic display for water quality and system status
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Automatic recirculation to help maintain ultrapure water quality
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Compatible with application-specific point-of-use purification accessories
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Flexible benchtop, undercounter, or wall-mounted installation
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Compact footprint for research laboratories
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Refurbished and tested by American Instrument Exchange
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90-day warranty included
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New purification filters and cartridges NOT included
Overview
The Millipore Direct-Q 3UV-R combines multiple purification technologies in a single laboratory water system.
The unit first treats incoming potable tap water using reverse osmosis to remove a substantial proportion of dissolved ions, organic contaminants, and particulates.
The resulting Type 3 water can be used for routine laboratory applications or further purified through the system's ultrapure water pathway.
Additional ion-exchange purification and ultraviolet treatment produce Type 1 water suitable for more demanding laboratory procedures.
The remote dispenser provides convenient access to ultrapure water without requiring the main purification unit to occupy the same workspace.
This combination makes the Direct-Q 3UV-R an attractive alternative to operating separate systems for general-purpose and ultrapure laboratory water.
Common Applications
The Millipore Direct-Q 3UV-R is used for preparation of analytical reagents, laboratory buffers, chemical solutions, chromatography mobile phases, sample dilutions, and research-grade laboratory water.
Type 1 ultrapure water is suitable for many analytical chemistry, molecular biology, spectroscopy, pharmaceutical research, and biotechnology applications when the system is equipped with the appropriate purification and final filtration components.
Type 3 reverse-osmosis water can support less demanding applications such as preliminary glassware rinsing, laboratory equipment feedwater, and general laboratory washing.
For applications requiring specific microbial, endotoxin, nuclease, or particulate limits, appropriate point-of-use purification accessories and water-quality verification may be necessary.
Key Specifications
| Specification |
Details |
| Manufacturer |
Millipore / Merck Millipore |
| Model |
Direct-Q 3UV-R |
| Manufacturer Catalog Number |
ZRQSVR3WW |
| AIE Inventory Number |
5654G |
| Equipment Type |
Laboratory Water Purification System |
| Water Quality Produced |
Type 1 Ultrapure and Type 3 RO |
| Feedwater Source |
Potable Tap Water |
| Nominal RO Production Rate |
3 L/hour at 25°C |
| Manufacturer RO Production Tolerance |
±15% at 25°C |
| Ultrapure Water Dispensing Rate |
Up to 42 L/hour (0.7 L/min) |
| Type 1 Water Resistivity |
18.2 MΩ·cm at 25°C |
| Type 1 Water Conductivity |
0.056 µS/cm at 25°C |
| Type 1 Total Organic Carbon |
Less Than 5 ppb with Functional UV |
| UV Wavelengths |
185 and 254 nm |
| RO Ionic Rejection |
At Least 96%, Under Specified Conditions |
| RO Organic Rejection |
At Least 99% for Molecules ≥200 Da |
| Microbial Specification |
Less Than 0.1 CFU/mL with Appropriate Final Filter |
| Dispensing Configuration |
Remote Dispenser |
| Water Quality Monitoring |
Electronic Resistivity and System Status Display |
| External Dimensions |
11.4"W × 16.5"D × 21.3"H |
| Approximate Dry Weight |
23.6 lb (10.7 kg), UV-R Version |
| Approximate Operating Weight |
46 lb (20.9 kg), UV-R Version |
| Electrical Options |
100V, 120V, or 230V, Depending on Version |
| Electrical Frequency |
50/60 Hz |
| Rated Electrical Power |
Approximately 80 VA |
| Reservoir Configuration |
Verify Installed Reservoir and Connections |
| Remote Dispenser Included |
Listed as Part of AIE's System; Verify Accessories |
| New Purification Filters |
NOT INCLUDED |
| New Purification Cartridges |
NOT INCLUDED |
| Condition |
Used / Refurbished |
| Warranty |
90 Days |
Specifications represent manufacturer-rated performance under appropriate operating conditions with functional purification consumables. Water quality is not guaranteed until the required replacement cartridges and filters have been installed and the system has been commissioned and tested.
Ideal Laboratory Types
The Direct-Q 3UV-R is suitable for biotechnology laboratories, pharmaceutical research facilities, molecular biology laboratories, analytical chemistry departments, environmental testing facilities, academic research institutions, and industrial quality-control laboratories.
It is particularly useful for laboratories that need both routine RO water and high-resistivity ultrapure water but have limited space for multiple purification systems.
Type 1 Ultrapure Water Production
Type 1 ultrapure water is used in laboratory applications where dissolved ionic contamination must be minimized.
When equipped with suitable purification cartridges, the Direct-Q 3UV-R can produce water with a resistivity of 18.2 MΩ·cm at 25°C.
This represents the theoretical maximum resistivity of ultrapure water at that temperature.
High-resistivity water is important for sensitive analytical procedures where dissolved ions may interfere with measurements or chemical reactions.
The actual water quality depends on feedwater conditions, purification cartridge condition, UV lamp performance, final filtration, and proper system maintenance.
Type 3 Reverse-Osmosis Water
The Direct-Q 3UV-R also produces Type 3 water through its reverse-osmosis purification stage.
The manufacturer specifies a nominal RO production rate of 3 liters per hour at 25°C.
Reverse osmosis removes a substantial proportion of dissolved salts, organic compounds, and particulates from incoming tap water.
Type 3 water is suitable for many routine laboratory applications that do not require the higher purity of Type 1 water.
It can also serve as feedwater for the system's subsequent ultrapure purification stages.
Dual-Wavelength UV Treatment
The Direct-Q 3UV-R incorporates a dual-wavelength ultraviolet lamp operating at 185 and 254 nm.
The 185 nm wavelength supports photo-oxidation of certain organic contaminants, helping reduce total organic carbon.
The 254 nm wavelength helps control microbial contamination within the purification pathway.
With the appropriate cartridges and a functional UV system, the manufacturer specifies Type 1 water with total organic carbon below 5 ppb under recommended operating conditions.
UV treatment does not eliminate the need for routine cartridge replacement, system sanitization, or suitable final filtration.
Remote Ultrapure Water Dispenser
The remote dispenser is one of the distinguishing features of the Direct-Q 3UV-R configuration.
It allows ultrapure water to be dispensed at a location separate from the main purification unit.
This is useful when the purification module must be installed beneath a bench or in another convenient location.
The dispenser provides access to water for filling laboratory bottles, preparing reagents, and other routine laboratory procedures.
The remote dispensing assembly, tubing, connections, and mounting components should be confirmed before purchase.
Water Quality Monitoring and Controls
The Direct-Q 3UV-R includes an electronic display and keypad for monitoring system operation.
The system displays ultrapure water resistivity and temperature information during applicable operating modes.
Its controls also provide access to operating functions, maintenance information, and system status indicators.
Monitoring resistivity helps operators identify changes in ionic water quality that may indicate depleted purification cartridges or other maintenance requirements.
Resistivity alone does not measure every possible contaminant, so additional testing may be necessary for applications requiring specific organic or microbial limits.
Purification Cartridges and Filters – NOT INCLUDED
This refurbished Millipore Direct-Q 3UV-R is sold without new purification filters or cartridges.
Customers must purchase the appropriate replacement consumables separately and install them before placing the system into service.
Depending on the installed configuration and intended application, required consumables may include the appropriate SmartPak purification cartridge, reverse-osmosis components, and a compatible point-of-use final filter or polishing cartridge.
Additional application-specific accessories may be necessary for laboratories requiring particularly low levels of bacteria, endotoxins, nucleases, or other contaminants.
The correct replacement parts should be selected using the manufacturer's documentation and the actual unit's configuration.
Customers should also verify the condition and remaining service life of the UV lamp.
Point-of-Use Filtration Options
Millipore offers optional final purification accessories for different laboratory water-quality requirements.
Compatible Millipak point-of-use filters can help reduce microbial and particulate contamination.
BioPak purification accessories are intended for applications requiring additional removal of certain biological contaminants, including endotoxins and nucleases.
These accessories are application-dependent and are not included unless specifically identified in the equipment listing.
The water-quality specifications associated with these accessories should not be assumed achievable without their installation.
Installation and Feedwater Requirements
The Direct-Q 3UV-R is designed to operate using suitable potable tap water.
The system requires an appropriate feedwater connection, electrical supply, drainage for RO reject water, and the necessary purification cartridges.
Manufacturer documentation specifies a feedwater temperature range of approximately 5–35°C and a pressure range of approximately 0.5–6 bar.
The unit can be installed on a laboratory bench, beneath a bench, or on a suitable wall-mounting arrangement.
The remote dispenser should be positioned where users can conveniently collect ultrapure water without placing unnecessary strain on its tubing and connections.
Before installation, customers should verify the unit's voltage, available reservoir, mounting accessories, and plumbing configuration.
Refurbishment and Testing by American Instrument Exchange
American Instrument Exchange inspects, tests, and reconditions used laboratory water purification systems before shipment.
For the Millipore Direct-Q 3UV-R, relevant functional testing includes checking the electronic controls, display, internal pump operation, valves, water connections, and remote dispensing functions.
The UV system, water-quality monitoring electronics, and available tubing and fittings should also be inspected.
Because new purification filters and cartridges are not included, final water-quality performance must be evaluated after the buyer installs suitable replacement consumables and commissions the system.
AIE's refurbished Direct-Q 3UV-R includes a 90-day warranty.
Shipping and Installation Support
The Direct-Q 3UV-R measures approximately 11.4 inches wide, 16.5 inches deep, and 21.3 inches high.
Its compact design makes it suitable for laboratories with limited bench space.
The system should be shipped with appropriate protection for the main purification unit, remote dispenser, tubing, and any included accessories.
After delivery, customers should install the correct replacement cartridges and filters, connect the water supply and drain, and follow the manufacturer's startup and flushing procedures.
Water quality should be verified before using the system for critical laboratory applications.
Related Equipment
Laboratories using the Millipore Direct-Q 3UV-R may also require other laboratory water purification systems, laboratory glassware washers, autoclaves and sterilizers, laboratory incubators, and analytical balances.
American Instrument Exchange supplies used and refurbished water purification systems and related laboratory equipment for biotechnology, pharmaceutical, academic, medical research, and industrial laboratories.
Millipore Direct-Q 3UV-R FAQs
What is the Millipore Direct-Q 3UV-R used for?
The Direct-Q 3UV-R produces Type 1 ultrapure water and Type 3 reverse-osmosis water for laboratory research, reagent preparation, analytical testing, and general laboratory applications.
What does the 3UV-R designation mean?
The 3 indicates the system's nominal 3 L/hour RO production capacity, UV indicates ultraviolet treatment, and R identifies the remote dispensing configuration.
Does the system produce Type 1 water?
Yes. With appropriate purification consumables and proper operation, the system can produce Type 1 water with a resistivity of 18.2 MΩ·cm at 25°C.
Does it also produce Type 3 water?
Yes. The system provides reverse-osmosis Type 3 water for suitable routine laboratory applications.
Are new filters and cartridges included?
No. New purification filters and cartridges are not included with AIE inventory unit 5654G. Customers must purchase the appropriate replacement consumables separately.
Is the remote dispenser included?
The system is listed as a remote-dispenser configuration. Customers should confirm the included dispenser, tubing, and mounting accessories before purchase.
What is the difference between production rate and dispensing rate?
The nominal 3 L/hour specification refers to RO water production. Ultrapure water can be dispensed at a higher instantaneous rate, up to approximately 0.7 L/min, depending on system configuration and available stored water.
Does the Direct-Q 3UV-R require distilled water as feedwater?
No. The system is designed to operate using potable tap water that meets the manufacturer's feedwater specifications.
Can the system be used for molecular biology?
Yes, for appropriate applications. Laboratories requiring low nuclease, endotoxin, or microbial levels may need compatible application-specific final purification accessories.
Does the UV lamp eliminate the need for replacement cartridges?
No. The UV lamp complements the purification system but does not replace reverse-osmosis membranes, ion-exchange cartridges, or final filters.
Does the refurbished system include a warranty?
Yes. American Instrument Exchange includes a 90-day warranty on this refurbished water purification system.
