Sterile Pes Syringe Filter, More Than 100mL High Throughput, 33mm Diameter, 0.22um Pore Size, Individually Packaged 10pcs by Albert's Filter LINKTOR Syringe Filter PES (Polyethersulfone) Hydrophilic Filtration, General Luer Taper 25mm Diameter 0.22 um Pore Size Non Sterile, Pack of 20 (Pack of 20, 0.22μm PES) 4.4 out of 5