... 2.PP membrane 3.On time delivery 4.With flange and flat 5.Experiencing 100% integrity test Water Filter Cartridge For Waste Water ... ,0.2,0.45,0.65,1,3,5,10,20,30,60 µm Length: 4"Sealing material: Silastic, NBR, EPDM, VitonAirtight ... (um)0.10.20.450.65123510203060Flow rate(L/min)51540556065656770757880 4 inch Water Filter Cartridge For Waste Water Treatment