Dec 21, 2021 · Whatman Membranes, 0.2um, Pore Size: 0.2um. Whatman 10408714, Mixed Cellulose Ester Filter, ME Range (ME 24), 3.1 mm white/black grid for membrane-butler, 0.2um pore size, 50 mm circle (400 pcs) Regular Price: $475.78 Price $413.73. Send Inquiry. Get Price.