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Thermo Scientific™ Slide-A-Lyzer™ 20K MWCO G2 Dialysis Cassettes

Remove buffer salts and contaminants while maximizing sample recovery with these second-generation self-floating protein dialysis cassettes (20K MWCO).

Manufacturer: thermo scientific™  PI87737

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Catalog No. PI87737

  • / Pack of 6 Each

Description & Specifications


Capacity (Metric) 30mL
MWCO 20000 Da
Formulation Cellulose membrane framed in inert plastic
Item Description 30mL-capacity Cassettes; 6 cassettes
Description Slide-A-Lyzer G2 Dialysis Cassettes, 20K MWCO, 30mL
Quantity 6 cassettes
Sufficient For 6 samples, each 12 to 30mL

Thermo Scientific™ Slide-A-Lyzer G2 20K MWCO Dialysis Cassettes provide maximum convenience, flexibility and performance for sample dialysis.

These second generation (G2) Slide-A-Lyzer Dialysis Cassettes are free-standing, self-floating and pipette-loadable units for dialysis. The single-use, disposable cassettes are available in five different sizes to accommodated samples between 0.1 and 70mL. They offer maximum efficiency, convenience and sample protection in one package. Sample loading and removal are easily accomplished by using a serological pipette or hypodermic needle (optional) attached to a syringe. The built-in air chamber provides sample buoyancy and vertical orientation of the cassette during dialysis.

The 20K molecular-weight cutoff (MWCO) cassettes use a cellulose membrane that is rated to completely retain proteins and other macromolecules that are larger than 20,000 daltons while allowing removal of buffer salts and small contaminants. The membrane is composed of low-binding regenerated cellulose, and the cassettes are manufactured using clean-room conditions.


Easy-loading – pipette-accessible for easy sample loading and retrieval

Self-floating – integrated air chambers eliminate the need for float buoys

Sturdy construction – ensures the highest possible sample integrity and protection

Superior design – thoroughly researched and tested to provide fast and consistent dialysis with maximum sample recovery

Multiple sizes – five cassette capacities to optimally match 0.1 to 70mL sample volumes

Versatile – ideal for removing low molecular-weight contaminants, performing buffer exchange and desalting

20K Dialysis Membrane Specifications:

  • Composition: Regenerated cellulose synthesized by the Viscose method
  • Thickness: 0.9 to 1.2mil (22.5 to 30μm)
  • Hydration Required Before Use: 2 minutes
  • Glycerol Content: None
  • Sulfur Content: 0.04%
  • Heavy Metals Content: Trace