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PTFE Cartridge Filters

SurePore PTFE Liquid Membrane

SurePore PTFE membrane cartridge has a high surface area chemically resistant polytetrafluorethylene membrane, available in a range of ratings, and is used in the most chemically aggressive situations, such as strong acids and bases for sterile, bioburden reduction and final filtration applications.

For standard applications then a filter cartridge using polypropylene hardware will be acceptable, however for the most aggressive chemicals (acids such as sulphuric, nitric, and bases sodium hydroxide at particular concentrations) then SurePore ALL PTFE membrane cartridges having hardware that is totally PFTE will be required.

SurePore PTFE is available in both hydrophilic and hydrophobic membrane types, with the latter find some applications in ophthalmic applications due to negligible product binding.

SurePore PTFE membrane exhibits high flux rates that reduce the cartridge size required combined with a wide range of chemical compatibility. All hardware is constructed from solid polypropylene that meets USFDA Title 21 and USP Class VI. The filter also meets the current USP requirements for extractables.

SurePore ALL PTFE membrane cartridges uses hardware is constructed from solid PTFE that meets USFDA Title 21 and USP Class VI. The filter also meets the current USP requirements for extractables.


Chemicals, solvents, API and ophthalmics manufacturing

Technical details

Filter Medium

Hydrophobic PTFE membrane
Filter Hardware

Available in either PTFE or Polypropylene support layers, core, and cage


A range of endcaps available to allow retrofitting of existing housings


Absolute and particulate grades bacterially challenged against removal of Serratia marcescens and Brevundimonas diminuta 

Micron rating range

0.2µm, 0.45µm, 1.0µm

Suitable for SIP/CIP


Available formats




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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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