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Model: 2122B - Biological Grade Type I DI System

The AQUA SOLUTIONS' Model 2122B is also available in a High Flow/Capacity (4-10 Liters/Min) version. These laboratory water purification systems are semi-custom designed for each application. Contact your salesperson for more information.

This unit operates on ordinary tapwater. For pretreated water operations, see Model: 2121B or Model: 2121BU. The Model: 2121BU and Model: 2122BU versions of this system are equipped with a built-in ultraviolet (UV) sterilizer.

The system also has versions 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. The system produces 2-Liters/minute of 18.2 megohm-cm Type I water from ordinary tap water that contains 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.

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 the pretreated water systems.

Features and Benefits

  • Built-in 5,000 MWCO ultrafilter module
  • 18.2 megohm-cm Type I Reagent Grade Water
  • 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)
  • Made in USA
  • CSA certified (US & Canada), CE marked for export to EU countries
  • Item is on GSA Contract # GS-07F-5799R

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" 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
UV2006S UV Sterilizer - Prevents the growth of microorganisms within the system


2613M1T Required Purification Kit - Includes a 2613TO High purity, High capacity DI module, a CC2000 Carbon Pre-filter, and a DC2002 0.22-Micron Final Filter
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