The GOAT Dripper uses a replaceable Dual Coil Head that can be re-wicked. The GOAT Coil Head comes in an option of either 2 x 0.13????Anarchist 22g??Nichrome 80 Coil Heads or 2 x 0.19????Anarchist 24g??Nichrome 80 Coil Heads, that are pre wicked with Japanese organic cotton.