Oct 29, 2021 · Millex-GV Syringe Filter Unit, 0.22 µm, PVDF, 33 mm, gamma sterilized: Background Information: Available in 4, 13, 25, 33, and 50 mm diameters with a variety of membranes, Millex® sterile syringe filters are ideal for sterilizing organic solvents, aqueous solutions or air/gas.