membrane filters in diameters from 13mm to 293mm and materials including PES, MCE, Nylon, PVDF, PTFE and Glass Fiber. Filter Medium Pore Size (um)Diameter (mm)Polyethersulphone (PES)0.05-0.6513, 25, 47, 90, 142, 293Mixed Cellulose Ester (MCE)0.05-0.6513, 25, 47, 90, 142, 293 / gridded, black, sterilePolyesteramide (Nylon)0.1-5.013, 25, 47, 90, 142, 293Plyfluortetraethylene (PTFE)0.1-3.013, 25, 47 ...