The hollow fiber ultrafiltration membrane we offer adopts modified PVDF as raw material. The PVDF is processed with hydrophilization treatment; our HF membrane for ultrafiltration has higher water flux and better antifouling property. MEMFILL has various types of membrane which has different molecular weight cut off (MWCO) up to ~100,000 Dalton; Our product can be used for the removal of microorganism, colloids, algae and other impurities that may cause turbidity.