Mini syringe filters are convenient for sterile filtration of small volumes (1 mL or less) with only 10 uL retention volume. Millex®-GV 0.22 um hydrophilic PVDF membrane in a 4 mm filter, pack of 5 individually packaged sterile filters. Kit includes sterile filters, 1 cc syringes, and screw cap vials, 5 each.