Injector Module Assy for Fleck 5600 and similar style control valves such as Cygna, CSI "CSA", and WaterSoft Isobar 1.  Comes with everything shown, including white injector nozzle/throat and 2.4 gpm DLFC button.  If you need a different color injector or a different size DLFC button, just specify in the notes at checkout.