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Polygard® CN Cartridge Filter

pore size 5.0 μm, cartridge nominal length 10 in. (25 cm), Code 7 (2-226; O-rings w/locking-tabs)

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Polygard-CN Cartridge Filter 10 in. 5.0 μm Code 7 Ethylene-Propylene


EPR seal

Quality Level






4.8 bar max. differential pressure (70 psid) at 25 °C
4.8 bar max. inlet pressure (70 psi) at 25 °C

cartridge nominal length

10 in. (25 cm)


7.0 cm (2.75 in.)

filtration area

0.42 m2


≤0.5 EU/mL bacterial endotoxins (LAL test, Aqueous extraction)

gravimetric extractables

≤50 mg

pore size

5.0 μm nominal pore size
5.0 μm pore size


sample type liquid

cartridge code

Code 7 (2-226; O-rings w/locking-tabs)

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General description

The Polygard® CN Cartridge Filter products are nominally rated filters designed for particle removal applications in liquids and gases. The pleated structure of Polygard®-CN filter media minimizes pressure differentials during the filtration process, a 5.0 μm pore size and the all-polypropylene construction of these filters conveys low levels of extractables and broad chemical compatibility. Downstream filter performance is enhanced due to efficient particle and microorganism reduction.

Polygard-CN cartridge filters provide high throughput with 4.8 bar max. differential pressure (70 psid) at 25 °C Cartridges are robust, strong, resilient and are designed to withstand multiple steam-in-place cycles.

Typical Applications
Polygard-CN cartridge filters are widely used in the beverage industry for liquid and gas filtration applications, for fining operations and bioburden reduction.

Regulatory Compliance
Polygard® CN Cartridge Filters are designed, developed, and manufactured in accordance with a Quality Management System approved by an accredited registering body to an ISO 9000 Quality Systems Standard and are shipped with a Certificate of Quality. Each cartridge filter is supported by a Validation Guide for compliance with regulatory requirements.

For traceability and easy identification, each cartridge filter is marked with identifying characteristics.

Multiple Formats Available
A full range of Polygard® CN Cartridge Filter sizes is available to suit your application requirements. A variety of connection options are offered for easy adaptation to existing housings.

Preparation Note

Sanitization Protocol
30 min with hot water @ 80 °C
Sterilization Method
10 autoclave cycles or SIP @ 126 °C for 30 min

Analysis Note

Gravimetric Extractables: after 24-h soak in water
Will meet the USP Oxidizable Substances Test requirements after a water flush of ≥5 L

Other Notes

Directions for Use

  • Organism Retention: Microorganism reduction
  • Mode of Action: Filtration (nominal)
  • Application: BioProcessing
  • Intended Use: Efficient particle and microorganism reduction
  • Instructions for Use: Please refer to the Polygard® and CLARIGARD® Cartridges user guide
  • Storage Statement: Store in dry location
  • Disposal Statement: Dispose of in accordance with applicable federal, state and local regulations.

Legal Information

CLARIGARD is a registered trademark of Merck KGaA, Darmstadt, Germany
POLYGARD is a registered trademark of Merck KGaA, Darmstadt, Germany

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