In Order from top of the pic to the bottom...
-The red dome part and the grey cylinder,below/ in the middle of, the red dome is the pump. That whole unit comes off.
-The white part is the nozzle like a spray paint can would have.
-The blue part is the check valve setup.
(The grey cylinder in the middle of the red dome fits over the blue part.)
-The larger grey part that surrounds the blue part is where the liquid is held.
-The light blue line coming down from the darker blue part is the straw to pick up the liquid.
If you want to see pic of the one I have ill post some for better understanding
