The Joyetech Ultimo tank features an all new top filling system and improved dual adjustable airflow control valves. The Joye Ultimo features a unique design that allows airflow to flow through the center for incredible airflow and vapor production. The Joyetech Ultimo includes (1) innovative MG Ceramic 0.5ohm atomizer head for a longer lasting lifespan with purest of flavor. The MG Ceramic atomizer heads utilizes 100% pure cotton and can be used on higher power settings which also helps produce vapor. (1) MG Clapton 0.5ohm atomizer head is included which utilizes Clapton wire for increased surface area which helps produce even more vapor. Four large e-Liquid inlet holes on the MG atomizer heads helps the coil become saturated with e-Liquid.