Aspire took good notes and added a ton of new features to their newest tank. The Aspire Triton features a simple top filling design that accommodates .3, .4, and 1.8 ohm resistance coils. The Aspire Triton offers a 3.5 ml juice capacity, and is 22mm in diameter. The tank section is constructed of pyrex glass in a steel shell for durability. There is airflow routed from the underneath of the tank as well as the top for new airflow options. This also helps regulate temperate and lets you choose your optimal airflow level. A 510 drip tip is included, that also features airflow valves. Simply turn the top until the arrow is above the drip icon, and then fill the tank. Once tank is full put the lid back on and turn back to the "vaping" icon.