Millex Syringe Filter, Hydrophilic PTFE, Non-sterile Replaces SLLGH25NK, 0.20 µm pore size, 33 mm diameter, Millex-LG hydrophilic PTFE membrane; find Millipore-SLLG033 MSDS, related peer-reviewed papers, technical documents, similar products & more at Sigma-Aldrich