Advken Dark Mesh Sub Ohm Tank Advken Dark Mesh Sub Ohm Tank 5ml/6ml. Special Design, Pass through the endless darkness JUST for the coming dawn. This tank, with marble pattern resin drip tip and powerful airflow and big capacity, like a gorgeous noble knight. You are the king when you are vaping with a dark mesh tank; your loyal night knight will conquer the world for you. How To Install The Coil Head. How Easy Will Be For The Top Sliding Refill Components SS & Black, Always The Classic Color Option Bottom Airflow Control Just screw the airflow rings to find the right airflow hole you need. Triple or Single Mesh Coil Inside. Mesh Coil Inside to offer you an impressive vaping flavor. Dark Mesh Tank Contains.