The Geekvape Cerberus Sub-Ohm Tank features new Aero Mesh atomizer heads designed to produce incredible amounts of flavor and vapor. The Cerberus features a 5.5ml e-Liquid capacity that may be refilled from the top using the twist off cap. The Cerberus Sub-Ohm tank measures in at 25mm at the base, but increases to 27mm at the widest point using the included bubble glass expansion to upgrade the juice capacity from 4mL to 5.5mL. The Cerberus features dual adjustable airflow slots for increased vapor production. The Cerberus includes (2) Aero Mesh X1 Kanthal 0.2ohm atomizer head best rated for 60-80W. The Cerberus is also compatible with your favorite SMOK Baby Beast atomizer heads.