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Glass Fibre Depth Cartridge Filters

PurePore GF gas for the longest life cartridge for sterile gas, tank venting and autoclave applications.

PurePore GF Gas filter range combines established depth filter technology, with a pleated high surface area construction, and sterile filtration to 0.02 micron in gas. These sterile gas cartridges contain pleated borosilicate glass fibre media, which is surface modified with fluoropolymer to provide excellent hydrophobic properties, allowing operation in applications that have small amounts of condensate contamination.

Flow rates of PurePore GF Gas are typically 2-3 times that of PTFE membrane filters, such as SurePore PTFE Gas that dramatically reduces cartridge usage and installation size for sterile gas applications in fermentation, food and beverage or vacuum break applications, such as autoclaves and lyophilisers.

All cartridges are thermally bonded and adhesive free to provide a robust filter.


Tank and vessel venting, fermentation inlet gas/ off-gas filtration. compressed air/ gas filtration, autoclave/ lyophiliser vacuum break and gases used in filling and bottling equipment.

Technical details

Filter Medium

Surface modified borosilicate microfibre

Filter Hardware

Polypropylene support layers, core (st.st core option) and cage.


A range of endcaps available to allow retrofitting of existing housings


Absolute sterilising grade – Validated by liquid bacterial, aerosol and viral challenges

Micron rating range

0.02µm in gas (condensate free)

Available formats Cartridge, Junior, and capsule

Reasons to work with us

  • Wide range of cartridge and bag filters to retrofit any existing installation.
  • Best Price GUARANTEED!
  • Our experts will optimise your filter system to further reduce costs.
  • A talented and highly specialist team to support all your filtration needs.
  • Reliability in quality, delivery and support.

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+44(0) 203 750 8060

Why work with PoreFiltration

No matter how small the filtration problem we are at the end of a phone or email to offer immediate support. Our aim as a company is to make filtration simply understood for all.

Our experience, knowledge and know-how of the Porefilter team enables us to deliver practical filtration solutions, because we know the importance these products play in your process.
Our aim is to provide you the best service. Whether a quote, a technical request or an order update we will respond to you the same day as you make the request. You want your quote, products or answers when you need them.
Quality products delivered at a reasonable cost. We aim to save you a minimum of 15% on your annual cartridge filter expenditure.

Talk to us today about your filtration requirements