Oct 29, 2021 · 2021 new 0.2 um ptfe filter Pall 0.2 µm, Acrodisc® Syringe Filter with PTFE - Pall Shop Sample filtration using syringe filters containing 0.45 μm (HPLC) or 0.2 μm (UHPLC) pore size membranes will also extend the life of chromatography columns by preventing particulate from blocking the flow path between the column packing.