GeekVape’s Z Sub-Ohm Tank provides a robust top airflow system, a sizable airway/filling hole, and an improved base connection. Specifically engineered to optimize flavor and vapor production, it employs both top airflow and top-to-bottom airflow for an enhanced flavor experience that is protected from leakage. Specifications: Height: 42.5mm (not including drip tip), Diameter: 26mm, Capacity: 5.5mL, Filling Method: Top Fill, Coil: Z0.4Ω KA1 / Z0.2Ω KA1 Box Contents: 1 x Z Sub-Ohm Tank, 2 x Z Series Coils (0.2Ω (70W-80W) (pre-installed) / 0.4Ω (50W-60W)), 1 x Spare Glass Tube 3.5mL, 1 x Coil Tool, 1 x Spare Parts Pack, 1 x User Manual, 1 x Promotion Card & Warranty Card