... 1. high quality disposable 2. used in labs 3. with full series for customer choice CN-CA Syringe Filter One ... membrane is very important. Name Filter Diameter ApertureMembrane materialHydrophilic Series ¢13 mm ¢25mm0.22, 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, 0.8, 1.2(um ...