This 4ml Adaptor Kit will change your Nautilus X Tank?s capacity from 2ml to 4ml. So if you prefer a longer tank with a bigger reservoir for e-liquid, then this adaptor kit is perfect for you.

Contents:
1 x Coil Adaptor
1 x 4ml Pyrex Tube

Features:
Upgrades 2ml Capacity to 4ml Capacity
For use with your Nautilus X Tank
4ml Pyrex Tube is also compatible with the Aspire Cleito Tank