Dec 21, 2021 · Corning PTFE membrane filter 0.22 um for solvents-Analytical Oct 29, 2021 · Pall Acrodisc ptfe membrane filter 0.22 um online-PTFE. Pall 4652 Acrodisc Syringe Filters with Super Membrane. This item: Pall 4652 Acrodisc Syringe Filters with Super Membrane, Sterile, 0.2 µm, 32mm, Pack of 50 $190.91 ($3.82 / 1 Each Set) In stock.