... Solids are quickly and efficiently flushed out through the drain.Disc Filtration UnitFil-tech supply 2inch, 3inch, 4inch, 6inch ... and 12inch disc filters. Filter Unit2 inch3 inch4 inch12 inchInlet & Outlet ... , running water primary filtration, machinery, etcMembrane water treatment Membrane system protectionThe purpose of protecting precision element of filter and ...