SMOK TFV18 Replacement Coil is compatible with SMOK TFV18 Tank. It has a mesh design and an organic cotton core. It is designed with a large heating area and provides two options: a 0.33ohm TFV18 Meshed Coil as well as a 0.15ohm TFV18 Dual Mesh Coil. 0.33ohm TFV18 Meshed Coil – tightly contact with the cotton inside, better to release a mellow flavor; 0.15ohm TFV18 Dual Mesh Coil – a dual mesh coil for optimized taste, accelerating heating and produce denser vapor. Both coils are designed for direct lung vaping. For 0.33ohm and 0.15ohm coil configurations, the best performance occurs around 100-110W.