The filter is a device composed of fiberglass. Made of plastic material It is a 6-piece grille and lateral side of the helix that attaches to the filter fibers below the basic helix 4 "plus the 2" pipe for connection to the printer.
Acts as a filter mesh bottom to keep water out of the filter during normal and distribution of water during backwash. Use the filter fiber diameter of 36 "open top - the bottom and work as a pipeline system control machine.