Durapore® Membrane Filter, 0.45 µm 0.45 µm pore size, hydrophilic PVDF, 25 mm membrane; Synonyms: Hydrophilic PVDF membrane filter discs,Hydrophilic Polyvinylidene fluoride membrane filter discs; find Millipore-HVLP02500 MSDS, related peer-reviewed papers, technical documents, similar products & more at Sigma-Aldrich