ANOW hydrophilic lab membrane have CN-CA, PTFE, GF, Nylon. PES,PVDF , the OD can be 25mm,47mm, 60mm,90mm,120mm,293mm ... About hydrophilic lab membrane filter discs:Specification:Material:Removal Rating :0.20µm, 0.45µm,1.20um, 3.00um, 5.00umDiameterMembrane Disc: Φ13 Φ25 Φ47 Φ50 Φ60 Φ90 Φ100Φ106 Φ142 Φ150 Φ200 Φ250 Φ293 Φ300 Roll Membrane: 270mm, 300mm Typical Data MaterialN66,PES,CN- ...