Sep 28, 2021 · Omnipore Membrane Filter 0.2 um pore size – Sigma-Aldrich Omnipore Membrane Filter 0.2 um pore size, Hydrophilic PTFE membrane, 142 mm diameter; find Millipore-JGWP14225 MSDS, related peer-reviewed papers, technical documents, similar products & more at Sigma-Aldrich Target2™ PTFE Membrane, 17mm, 0.20μm (F2513-4) Adding a syringe filtration step prior to injection not only