That little plug for the carto, that you put on top of the one with the little holes in it for filling, do you need this? I accidentally lost it down the drain when I was washing it. lmao!!! I hear it is to stop it from leaking juice up into your mouth while vaping. But is it truly needed or can I throw them all away. I have 5 of these cartos and the little middle rubber ring is annoying to put back in anways and is easily lost. Tips would be grand!!!!
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