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Hydrophobic PTFE Membrane Filters / Type 11803

The hydrophobic PTFE membrane filters are made of polytetra-fluorethylene (PTFE) only and are therefore permanently hydrophobic. Unlike hydrophilic filter types, they are not wetted by air humidity.

Order Number:  11803--25------N

Availability:  On Request

The main application of these membrane filters ist the filtration of air, gases and chemicals. PTFE membrane filters have an excellent chemical compatibility (pH 1 to 14), so that they are also used for the filtration of solvents and acids, to which other filter types are not resistant.


Laboratory Filtration Products (US and Canada)
en 9.6 MB

Product properties

  • Colour
  • Diameter
    25 mm
  • Flow rate
    80 mL/min/cm²/bar (isopropanol)
  • Pore size
    1.2 µm
  • Primary Product Type
  • Grade
  • Wettability
  • Material
    Polytetrafluorethylene (PTFE) membrane
  • Membrane Color | Grid Color
    white (w/o grid)
  • Filter Type
    Membrane Filters
  • Filter Format
  • Packaging
    Non-sterile, bulk packed
  • Pack size

Technical attributes

  • Bubble point
    0.45 bar
  • Membrane thickness
    100 µm
  • Filter material
    Polytetrafluorethylene (PTFE), hydrophobic
  • Sterilization Procedures
    By autoclaving at 121 °C or 134°C` Ethylene oxide
  • Application
    Solvent Filtration` Solvent Filtration-mixtures
  • Area of application
    Venting` Moisture Barriers` Clarification` Particle Analysis

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