... 8",10" Casing:UPVC,SS,FRP water filter plant with Ultra filtration membrane water filtering filter for water treatment with different membrane material ( ... technology, Ultrafiltration is simple which only requires a single process pretreatment for influent water.• Absolute cost savings & reduction in maintenance cost ... Flushing Time15-120minsChemicalsCitric acid,NaOH / NaClO,H2O2 UF water filter plant