Replace your lost or worn out fluid adjustment knob (part 13-1 in the diagram) on your Iwata Supernova series guns. This fits LS400 and WS400 models where the knobs are held on by a screw (we also sell). Early versions did not have the screw.
Iwata LS400 WS400 Fluid Adjusting Guide 93505492
Iwata LS400 WS400 Fluid Nipple 93505421
Iwata LS400 WS400 Fluid Screw Assembly 93505822
Iwata LS400 WS400 Air Adjustment Assembly 93505842
Iwata LS400 WS400 Fan Adjustment Knob 93505471 Supernova
Iwata LS400 WS400 Air Valve 93505480