Millex Syringe Filter, Durapore® ( PVDF ), Non-sterile 0.22 µm pore size, 4 mm diameter, Millex-GV Durapore® ( PVDF ) membrane, hydrophilic; find Millipore-SLGVR04 MSDS, related peer-reviewed papers, technical documents, similar products & more at Sigma-Aldrich