Durapore® Membrane Filter, 0.22 µm 0.22 µm pore size, hydrophilic PVDF, 47 mm membrane; Synonyms: Polyvinylidene fluoride membrane filter,Polyvinylidene fluoride membrane filter discs,Polyvinylidene difluoride membrane filter discs,Hydrophilic PVDF cut disc membrane filter; find Millipore-GVWP04700 MSDS, related peer-reviewed papers, technical documents, similar products & more at Sigma-Aldrich