5ml Aspire Nautilus Adjustable Airflow Bottom Dual Coil Changeable Pyrex Glass Clear Cartomizer. The Aspire tank has truly raised the bar with clearomizer tanks. Everything about this device is flawless; it's engineered and machined phenomenally well. With its Pyrex tank and stainless steel body it's extremely durable. The large press-fit o-rings ensure that it does not leak, and the ample amount of wicks ensure that gurgling is rare. If there is a little buildup, opening the airflow to a higher setting and taking a good drag will almost immediately vaporize the built-up liquid, getting rid of the gurgle. It also features a glue-free design, allowing it to be taken apart completely for thorough cleaning. The drip tip is detachable, allowing you to use one of your choice.