Aqua Solutions, Inc.

- Model 2121A - Analytical Grade Type I DI System



This affordable lab water system produces 18.2 megohm-cm ultrapure, reagent grade water at a flow rate of 2-Liters/minute. Continuous recirculation is utilized to maintain maximum water purity. Therefore, ultrapure water is instantly available on demand up to 7 feet from the system via the included hand held remote dispenser. The digital Conductivity/Resistivity monitor displays the water quality and a Green LED indicates that the water quality is above the acceptable purity. When the water quality drops below the desired purity, a Red LED alerts the user that it is time to replace the filters.

The system is simple to install and easy to maintain. The cabinet can be bench, shelf or wall mounted without the use of costly wall mounting brackets. It has a 2-year warranty in most countries and is proudly made in the USA.

  • 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 (2,000 Grains) of any comparable system
  • Ultrapure water available on demand up to 7 ft. from the system via the provided remote dispenser
  • Built-in activated carbon prefilter reduces particulates & organics for longer DI module life
  • Digital, temperature-compensated resistivity monitor with red/green LED alarms
  • 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) and CE marked for export to EU countries
  • Item is on our GSA Contract # GS-07F-5799R
  • Made in the USA

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 : 45 lbs (21 kg) cabinet only
  • Input Power : Requires one 100-240 AC, 50/60Hz, 1.0A grounded receptacle 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 : 50 lbs (23 kg)

Pure Water Specifications

  • Resistivity : 18.2 Megohm-cm - Ultrapure
  • Conductivity : 0.056 MicroSeimens/cm - Ultrapure
  • Ultrapure Grade Details : Analytical - Meets or exceeds ASTM, CAP, CLSI, and USP Specifications for Type I water
  • TOC : < 50-PPB
  • Flow Rate Details : 2-Liters/minute
  • Particulates : 0.22-Micron
  • Bacteria : < 1 cfu/ml
  • Flow Rate : 2-LPM

Feed Water

  • Feed Water Quality : For operation on water that has been pretreated via reverse osmosis, distillation or deionization by a central or point-of-use pretreatment system, and contains less than 20 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

  • UV2006S : UV Sterilizer - Prevents the growth of microorganisms within the system
  • UV2006X : Dual wavelength UV Oxidizer/Sterilizer - Reduces TOC levels to
  • UF2000 : Ultrafilter - Removes Pyrogen, Endotoxin, RNase, & DNase


  • 2613M1T : Required Purification Kit - Includes a 2613TO High purity, High capacity, Low TOC DI module, a CC2000 Carbon Pre-filter, and a DC2002 0.22-Micron
  • Final Filter
  • DC2002 : 0.22-Micron Final Filter
  • CC2000 : 1-Micron Activated Carbon Prefilter Capsule

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