Sartorius™ PTFE (Polytetrafluorethylene) Membrane Filters

Filter air and gasses, even at low differential pressures. Sartorius™ PTFE (Polytetrafluorethylene) Membrane Filters are permanently hydrophobic with low adsorption and excellent chemical compatibility. Choose from four pore sizes in a variety of diameters.

Brand: Sartorius™

Manufacturer Part Number: 11842--50------N


UNSPSC: 41000000

Code: NEW

Additional Details:
Additional Details: Weight: 0.10000kg

Product Code. 10323351

Quantity Price
1 £ 449.01 / Pack of 100
Estimated Shipment
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Description and Specification


Pore Size 5μm
Material Polytetrafluoroethylene (PTFE)
Diameter (Metric) Outer 50mm
Color White
Quantity (No. per Case) 100/pk.
Autoclavable Yes
Bubble Point 0.1bar
For Use With (Application) Air/gas-filtration
Liquid Flow Rate 250mL/min. (Isopropanol)
Thickness 100µm
Wettability Hydrophobic

Constructed of pure PTFE to be permanently hydrophobic
  • Not wetted by air humidity to allow unhindered passage of air
  • Excellent chemical compatibility (pH 1 to 14) and low adsorption (Gamma Globulin 8µg/cm²
  • Lab applications:
    • The main application is air/gas filtration, even at low differential pressures
    • Also ideal for filtration of solvents and acids to which other filter types are not resistant
      (Must be prewetted with ethanol or methanol before filtration of aqueous media)
  • A variety of non-sterile, white membranes without grids:
    • 0.2µm, 0.45µm, 1.2µm and 5.0µm pore sizes
    • 13, 25, 37, 47, 50, 90 and 100mm diameters
  • Can be sterilized by autoclaving at 121° or 134°C or with ethylene oxide
  • Bulk packed in boxes of 100 (boxes of 25 for the 90 or 100mm filters)