... .Micron pp filter cartridge 2.melt blown/PP yarn 3.Ro treatment pre filtration 4.Run a small resistance, strong adsorption ... φ30/65,IDφ28/652,Filter element length(mm):250,500,750,10003,Filter precision(μm):1 3 5 10 15 ... industry,water using in hospital, pharmacy Injection: Traditional Chinese PP Ro Water Filter