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Whatman™ WTP Range PTFE Membranes

Suited for applications involving aggressive organic solvents, strong acids, and alkalis due to being chemically stable and inert. Whatman&trade WTP Range PTFE Membranes are particularly suitable for preparing samples for HPLC analysis, air and gas sterilization.

$711.13 - $1,055.13


Material Polytetrafluoroethylene (PTFE)
Wettability Hydrophobic
Membrane Type WTP
View More Specs

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Catalog Number Mfr. No. Gas Flow Rate Diameter (Metric) Outer Pore Size Price Quantity  
Catalog Number Mfr. No. Gas Flow Rate Diameter (Metric) Outer Pore Size Price Quantity  
09-900-2 Whatman™
4.5L/min/cm2 25mm 0.2μm Pack of 100 Each for $793.83
09-900-11 Whatman™
17L/min/cm2 47mm 1.0μm Pack of 100 Each for $1,055.13
09-900-3 Whatman™
4.5L/min/cm2 47mm 0.2μm Pack of 100 Each for $1,055.13
09-900-7 Whatman™
7.5L/min/cm2 47mm 0.5μm Pack of 100 Each for $1,038.31
09927925 Whatman™
17L/min/cm2 25mm 1.0μm Pack for $711.13


PTFE stretched film, laminated to a nonwoven polypropylene support web>
  • Naturally hydrophobic
  • 0.5μm size is generally used for sample prefiltering in HPLC analyses for sample filtration where any solid particles can cause permanent damage to column
  • 0.2μm size is used in sterile venting of vacuum manifolds and sterile filtrate tanks and containers


Use up to 120°C (248°F); higher temperatures will cause laminate to soften.



  • Clarification of corrosives, solvents, and aggressive fluids
  • Collecting moist dusts for subsequent analysis (0.5 and 1.0μm pore sizes)
  • Air and gas sterilization (0.2 and 0.5μm pore sizes)
Description & Specifications


Polytetrafluoroethylene (PTFE)