Innokin ZF Replacement Coil 5 packThe Duo Mesh system includes a revolutionary new outer coil. The outer coil increases the capillary action of the cotton wicking material, pulling liquid into the coil head, pre heating it, and directing it to the inner coil for vaporisation, creating a more fully saturated and flavourful vape. The DuoPrime ZF coils launch with 0. 2 ohm (50 80W) and 0. 3 ohm (30 45W) variants, ideal for DL and RDL vaping respectively.