UF membrane Filter: 1).Size: 4", 6", 8" & 10" 2).UF material: PVDF,PP,PES,PS,PAN & PVC Ultrafiltration (UF) Membrane Filters are an asymmetric semi-permeable membrane made of high molecular chemical material by special technology. It presents hollow capillary tube shape (or hollow fiber shape), micro-pore covers tube wall densely. Feed liquid is flowing in or out the membrane under the influence ...