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Model: 2122BU - Biological Grade Type I DI System with UV Sterilizer

The AQUA SOLUTIONS' Model 2122BU is also available in a High Flow/Capacity (4-10 Liters/Min) version.

These lab water purification systems are semi-custom designed for each application. Contact your salesperson for more information.

This unit operates on ordinary tapwater. For pre-treated water operations, see Model: 2121B or Model: 2121BU. Versions are also available with built-in reverse osmosis pretreatment in a single cabinet design measuring just 20" wide x 20" high x 12" deep (Model RODI-C-12B and Model RODI-C-11BU).

Designed for applications that require up to 20 Liters/day of Biological Grade Type I Ultra Pure water, this laboratory water purification system produces 2-Liters/minute of 18.2 megohm-cm Type I water from ordinary tap water containing less than 250 PPM of total dissolved solids.

The unit includes a built-in ultrafilter to reduce pyrogen, endotoxin, DNase and RNase to the lowest possible levels. The system is also equipped with a built-in ultraviolet (UV) sterilizer to control the growth of microorganisms within the system.

More Information

All AQUA SOLUTIONS Biological Grade Type I DI Laboratory Water Purification Systems produce purified water that meets or exceeds ASTM, CAP and CLSI specifications for Type I reagent grade water. Since ordinary tap water contains 5-25 times the impurities of pretreated water, these tap water systems have lower overall capacity than pretreated water systems.

Features and Benefits:

  • Ultrafilter removes Pyrogen, Endotoxin, RNase and DNase
  • Built-in activated carbon prefilter reduces particulates & organics for longer DI module life
  • Ultrapure water available on demand up to 20 ft. from the system via the included remote dispenser (Part # 2700R)
  • Built-in 5,000 MWCO ultrafilter module
  • Continuous recirculation ensures superior water quality at all times
  • Highest flow rate (2-Liters per Minute) of any comparably sized system
  • Highest ion exchange capacity (4,000 grains) of any comparable system
  • Built-in activated carbon prefilter reduces particulates & organics for longer DI module life
  • Digital, temp-compensated resistivity monitor with red/green LED alarm set point
  • Teflon recirculating remote dispenser with 0.22 µm final filter capsule
  • System can be bench, shelf or wall-mounted at no extra charge
  • Two (2) year system warranty (US & Canada only)
  • CSA certified (US & Canada), CE marked for export to EU countries
  • Made in USA
  • Item is on GSA Contract # GS-07F-5799R" after "Two (2) year system warranty (US & Canada only)

System Specifications

Cabinet Dimensions Width - 20 in (508 mm), Depth - 12 in (305 mm) Height - 20 in (508 mm)
Mounting Bench, Shelf, or Wall (no additional charge)
Operating Weight 60 lbs (28 kg)
Input Power Requires two 100-240 AC, 50/60Hz, 1.0A grounded receptacles within 5 ft. (1.5 meters) of the right side of the system cabinet
System Power Source Switching power supply - 12 VDC at 2.5 Amps
Minimum Inlet Pressure 30 psi (2 bar)
Maximum Inlet Pressure 100 PSI (6.6 bar)
Total shipping weight 65 lbs (30 kg)

Pure Water Specifications

Resistivity 18.2 megohm-cm - Ultrapure
Conductivity 0.056 MicroSeimens/cm - Ultrapure
Ultrapure Grade Details Biological - Meets or exceeds ASTM, CAP, CLSI, and USP Specifications for Type I water.
TOC < 50-ppb
Particulates 0.22 micron
Bacteria < 1 cfu/ml
Pyrogen/Endotoxin < 0.001 EU/ml
RNase < 0.01 ng/ml
DNase < 4 pg/µL
Flow Rate 2-LPM

Feed Water

Feed Water Quality For operation on ordinary tap water that contains less than 250 PPM of TDS (total dissolved solids).
Water Connection User supplied 1/4" or 3/8" NPTF valve (1/4" Tube X 1/4" NPTM & 1/4'" Tube X 3/8" NPTM fittings included with system)
Inlet Connection 1/4" Tube fitting (20 ft. of tubing supplied with system)

Optional Upgrades

UV2006X Dual wavelength UV Oxidizer/Sterilizer - Reduces TOC levels to


2613M2T Required Purification Kit - Includes a 2613PT Pre-treatment DI Module, a 2613TO High purity DI module, a CC2000 Carbon Pre-filter, and a DC2002 0.22 micron Final Filter
UV2006LS UV Sterilizer Lamp
UF200RM-Q 0.05-Micron (5,000 MWCO) Ultrafilter - Removes Pyrogen, Endotoxin, RNase, & DNase
DC2002 0.22 micron Final Filter
CC2000 1 micron Activated Carbon Prefilter Capsule