Common use 0.2 um ptfe filter for healthcare-Voa Vial Whatman® membrane filters nylon pore size 0.2 μm, diam. 47 mm; Synonyms: syringe filter,Whatman filter,Z746215,membrane filters; find -WHA7402004 MSDS, related peer-reviewed papers, technical documents, similar products & more at Sigma-Aldrich