First off forgive me of my ignorance on the ecig lingo, basically I am making juice from my concentrates. I got spoiled by trying JustDab and have kind of fallen in love with the portability of it all. On their website it says the tanks are refillable but there is no mention of what tank it actually is. I was wondering if you all could help me figure this out. I forgot to take a picture without the mouthpiece but it us just a tube that runs down the whole thing to the atomizer? It is completely sealed from the tank. Thanks for any help you can give me. Fatty