Spectra/Por Biotech Cellulose Ester(CE) Dialysis Membranes 100000 MWCO 10 mm 10 mm. An Ultra High Purity and Precise Separation Dialysis Membrane. Vol/Length (ml/cm): 0.32. Dia. (mm): 6.4. Fourteen precise MWCOs ranging from 100 Daltons to 1 million Dalto