CN-CA membrane 1. used in laboratory 2. high quality, full size and material. 3. quick delivery. cheap price CN- ... the solvent chemical characters. Our membrane material have: CN-CA, Nylon, PVDF and PTFE Diameter have: 13, 25, 47, 50, 100 ... 200 ¢47 100 ¢50 100 ¢100 50 ¢150 50Hydrophobic Series Nylon 0.22 0.45 0.8 1.2 2.0 ... 50 ¢50 50 ¢100 50 ¢150 50 CN-CA membrane high quality