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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.

Item no.:  11803--90------G

Price:  $335.00

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25 Pieces

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.


zh 19.0 MB


Laboratory Filtration Products
en 8.2 MB


  • Bubble Point
    0.45 bar
  • Delivery Condition
  • Flow Rate
    80 mL/min/cm²/bar (isopropanol)
  • Membrane Color | Grid Color
    white (w/o grid)
  • Membrane Material
    Polytetrafluorethylene (PTFE)
  • Membrane Thickness
    100 µm
  • Pore Size
    1.2 µm
  • Sterilization Procedures
    • By autoclaving at 121 °C or 134°C
    • Ethylene oxide
  • Wettability


  • Application Area
    • Venting
    • Moisture Barriers
    • Clarification
    • Particle Analysis
  • Filter Diameter
    ⌀ 90 mm
  • Filter Format
  • Filter Material
    Polytetrafluorethylene (PTFE), hydrophobic
  • Filter Paper/Membrane Color
  • Filter Type
    Membrane Filters
  • Grade


  • Application
    • Solvent Filtration
    • Solvent Filtration-mixtures
  • Pack Size
  • Packaging
    Non-sterile, bulk packed