BorsoPTFE+ cartridges are manufactured using a highly hydrophobic dual layer ePTFE membrane. Each BorsoPTFE+ module of every cartridge is individually integrity tested using the Diffusive Flow Test, which correlates to the HIMA and ASTM F838-05 bacterial challenge tests.

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More Information

Material PTFE
Application Food and Beverage, Pharmacy, Semiconductor
Type Membrane Filter Cartridge
Diameter 70mm (2,8'')
Cartridge lenght 254mm (10”)
Micron 0.2
Adapters Doe / Double open end, Code 3 / Single open end with Flat closed and external 222 o-rings, Code 7 / Single open end with Fin end, 2 locking tabs and external 226 O-ring, Code 8 / Single open end with fin end and external 222 O-rings
Cartridge treatment Standard - Cleand and Flushed with pyrogen-free water. , Rinsed - Ultra-clean, pulse flushed to give a system resistivity of 18MΩ.cm
Seals Ethylene Propylene, Viton, Nitrile, FEP Encapsulate Viton, FEP Encapsulate Silicon

Product addition / Datasheet

BorsoPTFE_ (1.96 MB)

Description / BorsoPTFE+

BorsoPTFE+ cartridges are manufactured using a highly hydrophobic ePTFE membrane. The enhanced ePTFE membrane offers exceptionally high gas flow rates at low pressure differentials (see graph). BorsoPTFE+ cartridges are recommended for sterile gas filtration and venting applications. The hydrophobic characteristics of the ePTFE membrane makes the BorsoPTFE+ Plus filter cartridge particularly suitable for wet gas sterilising applications, such as fermenter air feed.

The construction of the BorsoPTFE+ cartridge has design features that allow higher membrane surface area, lower pressure drops and incorporates a stainless steel core for greater mechanical strength when operated at higher temperatures. 


BorsoPTFE+ ePTFE membrane cartridges meet the demanding filtration requirements of pharmaceutical, biotechnology, food and beverage industries. They are suitable for high flow sterile venting and gas filtration applications, including the filtration of wet gases.

Typical applications include: 

  • Sterileprocess gases
    The supply of sterile gas for critical applications in the pharmaceutical,
    biotechnology, food and beverage markets.
  • Sterile vents
    The safe sterile venting of processing vessels in pharmaceutical,
    fermentation, and food and beverage processes.
  • Biotechnology
    The sterile filtration of exhaust gases from biological fermenters.
  • Powder handling and tabletting
    The removal of ultrafine powder particles from compounding environments.


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