0.22um. 0.45um. CA Syringe Filter. Part No. Diameter Pore Size. 0.22um. Membrane selection guide – SlideShare. Sep 14, 2014 6 Membrane Selection Guide Nylon CA(Cellulose acetate) Non-Sterile Syringe Filter 10 I. Sample Preparation MS LLC Nylon Syringe Filter (. Syringe Filters – Glass, PTFE, PES, PP, Nylon, & More – Chrom Tech. Our