Uwell Valyrian 2 Pro Sub-Ohm Tank by (Uwell). The Uwell Valyrian 2 Pro tank features a 8ml juice capacity tank equipped with a hinged top fill design and compatible with the Valyrian 2 coil series. This sub-ohm tank allows E-liquid to be inserted inside through its hinged top-fill system; capable of holding up to 8ml juice capacity in the bubble glass tank. Capable of accepting coils from the Valyrian 2 coil series, the Valyrian 2 Pro delivers exquisite flavor with every hit you take.