Millex Syringe Filter, Durapore® ( PVDF ), Non-sterile 0.45 µm pore size, 33 mm diameter, Millex-HV Durapore® ( PVDF ) membrane, hydrophilic; find Millipore-SLHV033N MSDS, related peer-reviewed papers, technical documents, similar products & more at Sigma-Aldrich