The Kanger Aerotank v2 offers the same great features and performance as the Kanger Aerotank but with a redesigned airflow valve. Turn the dial on the base to increase or decrease airflow to your preference. It also comes with a stainless steel replacement tube if glass isn't your thing. In this version the atomizer heads have also been redesigned with the wicks hidden to further prevent leakage. Enjoy the this combination.