This is for vapers who like great flavour and for those who like to switch between vaping styles without having to swap tanks. Customers who want a replacement or spare for the Joyetech D19 battery. It is a sturdy tank which can be paired with almost any e-cig battery. Customers can experience two contrasting vaping styles within the same tank and it will perform well in a range of output modes. Screw top filling adds convenience to this tank’s list of impressive features.