... cartridge 2.PP membrane 3.On time delivery 4.With flange and flat 5.Experiencing 100% integrity ... comply with FDA related requirements. It is the first choice of pre-filtration due to its unique low ... 1,3,5,10,20,30,60 µm Length: 4"Sealing material: Silastic, NBR, EPDM, VitonAirtight method: ... .450.65123510203060Flow rate(L/min)51540556065656770757880 4 inch Water Filter Cartridge For Waste Water Treatment