tubing
Tygon® SPT 3350 Sanitary Silicone Tubing | U.S. Plastic Corp.
Spec as per the maker of the REO
All reos wood or metal use this tubing one tubing for all. If someone breaks this tubing there doing something wrong
Tygon® Sanitary Silicone Tubing 1/16" ID x 3/16" OD with 1/16" Wall
Bottles if you have the old style keep the drilled lid for the tube and just sub in a dropper bottle that will screw into it (Can't remember if it is 5 mL or 10 mL). I bought a bunch of those bottles cheap on amazon years ago.
Silly trick for traveling with a REO if it uses the old bottles. What I do is take 2 18650 battery boxes. In one I put 2
batteries. In the other I put 2 full bottles with the closed cap. When I need liquid I just unscrew the empty bottle and screw on a full one from my box. Then put the lid from the full one on the empty one and stick the empty in the box. No muss no fuss. Its done in seconds.