Wholesales 0.22um hplc filter vials for filtration verex-HPLC Available with 6 membrane types of CA, PVDF, PES, MCE, Nylon and PTFE 3 membrane areas of 0.88, 3.46 and 4.45 cm 2 3 pore sizes: 0.1 μm , 0.22 μm and 0.45μm Quality tested for filter efficacy and housing integrity Low hold-up volume Gamma radiation . 0.22um hplc syringe filter