Purtrex Depth Filters

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Purtrex depth cartridge filters are a patented thermally bonded filter for all-around industrial use in plating, chemical filtration, and potable water. Purtrex is an exceptional value for applications where long life, high purity, and low change-out frequency are desired.


  • Exceptional value for general applications
  • Progressive graded density captures particles throughout the entire filter
  • No surface blinding (surface blinding causes flow reduction, which increases filter change outs)
  • Inert material means broad chemical compatibility
  • Exceptional dirt-holding capacity
  • Pure 100% polypropylene construction
  • No wetting agents, solvents, antistatic agents, or binders
  • Incinerates into trace ash with no hazardous volatiles for easy disposal
  • Made in the USA


  • US FDA 21 CFR compliant materials
  • Article 3 of the EU framework Regulation No. 1935/2004/EC Safety requirements
  • EU Plastics Regulation No. 10/2011 (may be used as intended in all compliant EU member states).
  • Meets USP Class VI-121 C plastics criteria.
  • NSF 61 and NSF 42 certified
  • ISO 9001:2015 certified processes
  • For further details please see the product factsheet and/or product declaration.

Data Sheet

Additional information