Virosart® Max 20" Standard Filter Cartridge

Maximize your virus filter performance with adsorptive pre-filtration. Virosart® Max is a specifically optimized virus pre-filter significantly increasing downstream virus filter performance.

Item No.: 

*Custom/bulk order quotes are provided within 72 hours of request.


  • Positioning: The main application for Virosart® Max* is the protection of the final virus retentive membrane. For that purpose this filter is used at the end of the purification process in-line with the final virus filtration step of the biopharmaceutical product. The optimized pre-filter – final-filter ratio should be determined during development of the virus filtration step.
  • Working principle: Virosart® Max* combines size exclusion mechanism with efficient adsorptive capacities to increase the robustness of the following virus filtration step. The most challenging molecules for the final virus retentive membrane are aggregates and | or small hydrophobic molecules. Virosart® Max binds aggregates very efficiently through hydrophobic interactions, independently of process conditions such as conductivity.

Product Benefits:

  • Cost efficiency: The combination of size exclusion mechanism with efficient adsorptive capacities, will downsize your process and reduce your total virus filtration costs.
  • Fast installation: With the T-Style design the Virosart® Max MaxiCap® is ideal for easy installation of multiple filters in series or parallel.
  • Smart process transfer: The clean triple layer membrane material provides highest adsorptive capacities optimized for this process step and scalability from lab to process scale.
  • Ready to use: The sterile delivery secures ease of use as well as fast installation of the filter elements.
  • Ease of use: Virosart® Max are tested for integrity using a water-based diffusion test, e.g. based on the Sartocheck® technology of Sartorius Stedim Biotech

Regulatory Compliance

  • Each individual filter is tested for integrity
  • Designed, developed and manufactured in accordance with an ISO 9001 certified Quality Management System
  • Meet or exceed the requirements for WFI quality standards set by the current USP
  • Non pyrogenic according to USP Bacterial Endotoxins
  • USP Plastic Class Test VI

* The patented technology (DE 10 2011 105 525 B4) binds aggregates efficiently through hydrophobic interactions with polyamide, independently of process conditions such as conductivity from biological feed streams (mAbs, plasma derivates or recombinant proteins).


  • Application
    Virus Prefiltration

Connections (Physical)

  • Connector Inlet
    2-Flange Bayonet Adapter with 226 Double O-ring (25)
  • Connector Outlet


  • Filtration Area
    1.4 m² | 15 ft²


  • Integrity Tested

General Specifications

  • Capsule/Cartridge Format
    Filter cartridge
  • Filter Format

Materials of Construction

  • Filter Material
    Polyamide (PA)

Physicochemical Information

  • Pore Size
    0.1 μm (nominal)

Product Information

  • Brand
    Virosart® Max
  • Filter Type
    Virus Prefilters
  • Pack Size


  • Delivery Condition
    Non sterile - Autoclavable | Steamable
Sartocheck® 5 Plus Filter Tester
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The Sartocheck® 5 Plus Filter Tester is an automatic filter integrity tester with automated Quality Risk Management (QRM) designed to cover the complete range of integrity testing from small syringe filters up to large multi-round housings and tangential flow cassettes.

Single round Housing T-Type
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Sartorius Stedim Biotech Sanitary Single Round Filter Housings are specifically designed for liquid filtration applications of the Bio-Pharmaceutical Industry. Application: bioreactors, CIP skids, autoclaves, lyophilizers and process tanks.

Virosart® HC 20" Standard Filter Cartridge

The high capacity virus filter for robust and efficient removal of small non-enveloped and large enveloped viruses in blood & plasma applications.

Virosart® CPV 20" Standard Filter Cartridge

The PES based virus filter for robust and efficient removal of small non-enveloped and large enveloped viruses in biopharmaceutical applications. Virosart® CPV is the optimal virus filter for monoclonal antibodies or small recombinant proteins.