I'm not sure about the bottle in the V3 except that it's 7ml, silicone (unlike the early versions of the inbox) and looks pretty generic. @ShowMeTwice might know the answerAwesome to know. I do like the look of it and that is regulated. Another question does it use any bottle or are those proprietary ones. That is something, in general, I don't like about some...since probably ..eventually..I might try squonking![]()