Milli-Q^® SR 240L Purification System Kit

To learn how Milli-Q® SQ 2Series water systems work and read a full overview, visit our dedicated page.
The Milli-Q^® SR 240L water purification system kit delivers pure reverse osmosis (RO) water to two mobile SQ Switch 3.5 L tanks. It comes equipped with a Gravity valve to dispense RO water directly from the SQ Switch tank base.

Thanks to the mobile SQ Switch tanks, the water system adapts to any lab configuration: the RO water production unit is placed next to a potable water source, while unlimited ultrapure dispensing modules can be positioned anywhere in the lab or building with an electrical outlet. This allows for a flexible installation that can be easily adapted and scaled according to changing lab requirements.

This dual tank configuration is suitable for larger laboratories that have greater ultrapure water requirements.

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The Milli-Q^® SR 240L water purification system kit is 1 of 6 preset configurations available for the Milli-Q^® SQ 2Series family, which provides full autonomy to users and is adaptable to lab requirements and evolutions. This RO water production station provides:

• Fast (as little as 6 min) refilling of the mobile SQ Switch tank with freshly produced pure RO water thanks to the high-flow RO cartridge (up to 42 L/h) of the pure water production station; RO water recovery loop saves 50% of the rejected water; High performance maintained by automatic rinsing of RO membrane
• Compact setup and self-guided installation manual and videos let you plug the system wherever is convenient for your lab activity and move it later if needed
• Unlimited scalability with one pure RO water production station able to feed multiple autonomous Milli-Q^® SQ 200 ultrapure dispensing modules. This supports lab activity expansion while limiting budget investment
• Individual Twist & Lock cartridge replacement simplifies maintenance and limits running cost
• Compact size plus water and energy savings support lab sustainability efforts
• When combined with the autonomous Milli-Q^® SQ 200 ultrapure water dispensing module, labs benefit from:
• Simple, manual handset dispensing that allows any new or untrained user to deliver ultrapure water at variable flow rate, from up to 1.6 L/min to drop by drop
• Reliable 18.2 MΩ·cm resistivity ultrapure (Type 1) water quality, indicated at a glance by a colored LED, and TOC is reduced by an integrated photo-oxidation UV lamp
• Freshly dispensed ultrapure water available anywhere, in or out the lab, thanks to the mobile SQ Switch tank

The indicated price currently corresponds to the above catalog number only; it is subject to change at any time without notice.


This catalog number includes:

• The pure RO water production station
• Two Milli-Q^® SQ Switch 3.5 L tank
• One SQ Gravity valve

This catalog number does not include:

• SQPAK^™ cartridges
• Power cord adapted to the local electrical network

Milli-Q is a registered trademark of Merck KGaA, Darmstadt, Germany

SQPAK is a trademark of Merck KGaA, Darmstadt, Germany