... And here we would like to recommend our CN-CA membrane filter discs. the details are as below ... :SPECIFICATION: MATERIAL: CN-CA(Nitrocellulose-cellulose acetate) PORE SIZE: 0.1um, 0. ... 22um, 0.45um, DIAMETER: Φ13, Φ25, Φ47, Φ50, Φ90, Φ100, Φ106 Φ142, Φ150, Φ ... refer to our showroom. FEATURES: 1. CN-CA is quite good membrane material with quite uniform pore ...