Aspire Atlantis Mega Sub Ohm Tank The Atlantis Mega Sub Ohm Tank by Aspire is the 30mm (large version) of the popular Atlantis. This larger tank system brings new improvements such as an improved adjustable airflow which allows the air to flow more. The Atlantis Mega features a larger 5ml capacity compared to the original 2ml capacity of the Atlantis. The Atlantis Mega features a new cooling system located at the top of the tank which allows you to adjust the temperature of vapor by rotating the valve to control the amount of external air. The Atlantis Mega also features a large stainless round drip which provides a RDA-like experience. The Atlantis Mega features new sub ohm Japanese organic cotton coils that help vapers experience a purer taste and bigger clouds than the previous model. 1.0ohm 0.5ohm and 0.3 ohm coils are all available for Atlantis Mega. Features:Dimensions:2-3/4"L x 1-1/8"D30mm Diameter510 threadedCapacity: 5mlReplaceable glass tankStainless steel constructionPatented Aspire BVC Technology100% Organic cottonWire made in the USAAvailable resistances: 0.3ohm 0.5ohm and 1.0ohmUpgraded adjustable airflowNew cooling system Filled from the bottom: Unscrew the base and fill tank to the while avoiding the metal airflow tube in the center.