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Milli-Q® HX SD Water Purification System

A Complete, compact and fully customizable pure water solution, integrating Elix® technology to deliver up to 3000 Liters of Type 2 pure water per day

For more information on this product, including pricing & availability, please contact our Technical Service Team

AC/DC input

230 V, 50 - 60 Hz


pkg of 1 unit


≤20 L/min distribution flow rate
222 kg operating weight (489.4 lb)
40 L/hr flow rate
40 L/hr make-up flow rate
800 L/day max. usage

H × W × D

124 cm (48.8 in.) × 54.3 cm (21.4 in.) × 94.7 cm (37.3 in.)


140 L

total organic carbon (TOC) residue

<50 ppb


potable tap water


type 2 water (> 5 MΩ·cm)


<0.2 μS/cm at 25 °C

General description

  • Milli-Q® HX 7000 SD systems are a complete, compact, connected and fully customizable pure water solution for large laboratories requiring a few hundred to up to 3000 L/day of Type 2 pure water. These systems allow a distribution flow of up to 20 L/min for a small and mid-size loop. This enables one Milli-Q® HX 7000 SD system to reliably supply the pure water needs of a large laboratory or an entire floor of a building.
  • Tap water is first pretreated by a Progard® cartridge to efficiently remove particles, colloids, free chlorine and hardness. Advanced reverse osmosis (RO) then removes 95-99% of ions, and 99% of all dissolved organics (>200 Da), microorganisms and particles. Patented E.R.A.® (Evolutive Reject Adjustment) technology automatically assesses feed water quality to produce a constant flow rate and optimize water recovery (between 45% and 75%). The Elix® electrodeionization (EDI) module further removes ions to typically reach resistivity >5 MΩ.cm (at 25 °C). Processed pure water is then irradiated by a bactericidal UV lamp before entering the built-in storage tank. This integrated 140 L water reservoir offers protected storage plus a distribution pump provides up to 20 L/min pure water for a loop of up to 50 m long. The systems are equipped with a large, colored touchscreen display panel to facilitate maintenance, control and access to data.
  • These central systems are embedded with our unique MyMilli-Q Remote Care online monitoring and service capability, which operates as an extension of Milli-Q® Services. This digital service lets you securely and remotely manage your system, supporting your lab′s optimal productivity.


Water produced from Milli-Q® HX 7000 SD systems can reliably feed all your Type 2 pure water needs, including:
  • Equipment and instruments such as dishwashers, autoclaves, clinical analyzers, heating baths, environmental and humidity chambers, and histopathology stainers.
  • Taps on benches for general glassware rinsing, buffer and reagent preparation.
  • Purification systems to obtain ultrapure water (e.g. Milli-Q® IQ 7000 system).

Features and Benefits

  • Optimal combination of purification technologies for a reliable flow of high-quality Type 2 pure water.
  • Integrated 140 L reservoir and pump for protected storage and distribution up to 20 L/min.
  • Superior communications interface and modern data management capabilities.
  • Customizable range of options and accessories to meet your specific requirements.
  • Milli-Q® Connect remote monitoring and service capability.


  • The indicated price currently corresponds to the above catalogue number only; it is subject to change at any time without notice.
  • This catalogue number does not include consumables, accessories and other products and/or services that may be required for the installation and the correct operation of the water purification unit over time.
  • Because our customers each have specific purified water needs, we recommend that you have your purchase validated by one of our specialists. We remain at your disposal to advise you, do not hesitate to contact us!

Other Notes

Directions for Use
  • Organism Retention: Microorganisms
  • Mode of Action: Filtering and UV
  • Application: General laboratory analysis
  • Intended Use: Water purification
  • Instructions for Use: This item provides water filtered through 0.22 μm sterilizing-grade membranes and exposed to bactericidal UV lamp, and is a device that meets requirements under FIFRA. Refer to system equipment user guide section "Using the System" (available on USB key in the system box)
  • Storage Statement: Store in dry location
  • Disposal Statement: Dispose of in accordance with applicable federal, state and local regulations.

Legal Information

E.R.A. is a registered trademark of Merck KGaA, Darmstadt, Germany
ELIX is a registered trademark of Merck KGaA, Darmstadt, Germany
Milli-Q is a registered trademark of Merck KGaA, Darmstadt, Germany
MyMilli-Q is a trademark of Merck KGaA, Darmstadt, Germany
PROGARD is a registered trademark of Merck KGaA, Darmstadt, Germany

Certificate of Analysis

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Certificate of Quality

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Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

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