SLHV033N. Millex Syringe Filter, Durapore ® ( PVDF ), Non-sterile, 0.45 µm pore size, 33 mm diameter, Millex-HV Durapore ® ( PVDF ) membrane, hydrophilic. View Pricing. SLGV004SL. Millex-GV Filter, 0.22 µm, A 4 mm diameter sterile syringe filter with a 0.22 µm pore size hydrophilic PVDF membrane. Comes in a pack of 100.