Eleaf Melo 4 D22/D25 Atomizer From Eleaf Is A New Sub-ohm Tank With 22mm/ 25mm Diameter And 2ml/ 4.5ml E-juice Capacity. It Adopts Unique EC2 Series Coils, Which Brings Huge Vapor With Nice Flavor. 2ml D22 And 4.5ml D25 Atomizers For Your Selection.