... used in labs 3. with full series for customer choice CN-CA Syringe Filter One time shaped, elegant appearanceIntroduction ... has:CN-CA, Nylon, PVDF, PTFE. Choose proper membrane is very important. Name Filter Diameter ApertureMembrane materialHydrophilic Series ¢13 ... 0.45, 0.8, 1.2(um)CN-CAHydrophobic Series ¢13 mm ¢25mm0.22, 0.45, 0.8 ... , 1.2(um)Nylon Hydrophobic Series ¢13 mm ¢25mm 0.22, 0.45, 0 ...