网页MILLEX ® - GV Syringe Filter, 0.22 μm Hydrophilic PVDF, 13 mm, Sterile. Millex-GS Syringe Filter Unit, 0.22 µm, A 25 mm diameter sterile syringe filter with a 0.22 µm pore size Mixed Cellulose Esters membrane. Comes in a pack of 50. MILLEX ® -LCR Syringe Filter, 0.45 μm Hydrophilic PTFE, 33 mm, Nonsterile.