I have a Liquinator tank on mine, but the cap will not fit over this tank, although other tanks will. My Liquinator works and looks AWSOME on the Switchback!!! You can put a tank or any 510 carto on each side. This device performs like any 3.7 volt regulated device. As long as you are not expecting a $200 mod, you will be very pleased with the value and quality of this device. If you explore ECF, you will see that service is the strong point of Vaporbeast.com. Thumbs up from my perspective, and at this price point its a really solid value!!