Aspire Revvo Coil Brand new, innovative, revolutionary “ARC” (Aspire Radial Coil). Aspire’s newest TPD compliant “ Stove Top” Style coil. 0.10-0.16ohm. Contents:3 x Revvo ARC Coil To Change the coil Unscrew the top cap, put to one side. Unscrew the coil mounting screw. Remove the used coil. Replace with fresh coil – ensuring that the new ARC is sitting flush with the tank. Screw the coil mounting screw back into place. Replace the Top cap.