water filters membrane hollow fiber MWCO:from 5k to 500k Dalton Material:PVC,PAN,PVDF,PP,PS,PES Dia:4", 6", ... 8", 10" water filters with UF Membrane for ... (mm) 90x1175 TypeInside-Out Hollow fiberMaterialAlloy-PVC (PAN,PVDF,PS)I/O Diamater of hollow fiber1.0/1. ... Time15-120minsChemicalsCitric acid,NaOH / NaClO,H2O2 Ultrafiltration water filters