The Aspire Atlantis Replacement Coils are designed specifically for use in Aspire's Atlantis Sub-Ohm Tank but are also backwards compatible for use in the original Atlantis tank. These redesigned bottom vertical coils are wicked with 100% organic cotton delivering superb flavor production. Enlarged inlet holes allow juice to wick more effectively than the previous versions. Built using only 100% USA made resistance wire the The Aspire Atlantis Replacement Coils is available in three resistances .3 ohms, .5 ohms, and 1.0 ohms. The Aspire Atlantis Replacement Coils will certainly give a more dense and flavorful vapor compared to its predecessor.