Clarigard® Cartridge Filter

nominal pore size 3.0 μm, cartridge nominal length × diam. 2 in. (75.0-78.0 mm) × 2.75 in. (70 mm)


polypropylene filter

Quality Level






4.8 bar max. differential pressure (70 psid) at 20 °C

cartridge nominal length × diam.

2 in. (75.0-78.0 mm) × 2.75 in. (70 mm)


≤0.25 EU/mL bacterial endotoxins (LAL test, aqueous extraction)

gravimetric extractables

≤10 mg

pore size

3.0 μm nominal pore size
3.0 μm pore size


sample type liquid

cartridge code

Code N (2-226; O-Ring)

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General description

Clarigard® filters 99.99% retention characteristic makes them ideal for the protection of critical downstream process steps such as membrane filters or chromatography columns. The graded-density depth structure of Clarigard® filter media provides maximum filtration capacity, and the polypropylene construction offers low extractable levels and broad chemical compatibility.

Preparation Note

Sterilization: May be autoclaved for 10 cycles of 30 minutes at 126 °C or steam sterilized for 10 cycles of 30 minutes at 126 °C or hot water sanitized at 80 °C maximum for 30 minutes.

Analysis Note

Gravimetric Extractables: After autoclaving and a 24-hour soak in ASTM® Type 1 reagent grade water at controlled room temperature, meets the USP Oxidizable Substances Test requirements of <10 mg.

Other Notes

Directions for Use:
  • Organism Retention: 99.99% retention
  • Mode of Action: Filtration (nominal)
  • Application: BioProcessing
  • Intended Use: Bioborden reduction
  • Instructions for Use: Please refer to the Polygard® and Clarigard® Cartidges user guide
  • Storage Statement: Store in dry location
  • Disposal Statement: Dispose of in accordance with applicable federal, state and local regulations.

Legal Information

ASTM is a registered trademark of American Society for Testing and Materials
CLARIGARD is a registered trademark of Merck KGaA, Darmstadt, Germany
POLYGARD is a registered trademark of Merck KGaA, Darmstadt, Germany

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

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