0.22um Syringe Filters , 0.45um Sterile Syringe Filters 1) Product series: Filtration Products 2) Available with 6 membrane types of FCA, PVDF, PES, MCE, Nylon and PTFE 3) membrane areas of 0.65 and 4.3 cm2 4) pore sizes: 0.1, 0.22 and 0.45μm 5) Quality tested for filter efficacy and housing integrity 6) Low hold-up volume 7) Gamma radiation