... ",6",8",10" Casing:UPVC,SS,FRP water filter plant with Ultra filtration membrane water filtering filter for water treatment with different membrane material (PES ... or 0.9-1.0mm. The micropores distribute around the wall of the membrane. The entrapping molecular weight scale is about ... Flushing Cycle6-180daysChemicals Flushing Time15-120minsChemicalsCitric acid,NaOH / NaClO,H2O2 UF water filter plant