You kidding. I can't remeber what color is suppose to be what. :D
If I can't read the designation, I have to use a P/T chart to know whats in the bottle. :)
Thats why they put it in a box with big letters and numbers. For blind people like me.
I take my jugs out the boxes. I have that there fancy tank holder in my POS Ford.
I got 7 tanks in the holders and like 3 more tanks on the floor of the van. Crammed in with nitro and a recovery tank.