Innokin Prism S Coils for use with Endura T20-S and EZ Watt kits. Available at 0.8 ohm (RDL – restricted direct-to-lung) or 1.5 ohm (MTL – mouth-to-lung) resistance. Please note that these coils are compatible only with with the Innokin Endura T20-S Kit and are not suitable for T20 Kits.