WOTOFO FLOW SUBTANK is a sub ohm atomizer in popular 24mm diameter. The FLOW holds 4ml e-liquids or 2ml with a silicone plug to satisfy the TPD policy. Moreover, easy top filling, adjustable bottom airflow and silver-plated 510 pin for better conductivity will ensure you enjoy a better vaping experience. The included 0.25ohm coil supports 30 - 60W power for beast clouds and impressive flavor.