Aspire Nautilus X coils are designed for use with the Aspire Nautilus X vape tank, providing a tasty, satisfying mouth-to-lung vape, and are available in both 1.5 Ohm and 1.8 Ohm, for use between 10-20 watts. The Nautilus X coils feature an innovative U shaped chamber, forcing the vapour to pass the Kanthal coils twice before being inhaled, increasing airflow and flavour performance.