Aspire Quad-Flex Tank - Survival Kit Aspire Quad-Flex Survival Kit is a game changer. Rip up the vape rule book. Graduate to the different levels of vaping at your own pace. The Quad-Flex System provides the ultimate multi-device package complete with four configurations of atomizer in one streamlined kit. From the refined flavor beast and those who enjoy traditional tight pulls, to vaping cloud chasers, the Quad-Flex covers all bases. Quad-Flex 4-in-1: Four ways to Flex From the refined flavor beast, mouth-to-lung, replaceable coil tank of the Nautilus X, to the all new cloud-chasing Quad-Flex drop-wick RDTA, when you rock the Quad-Flex, you are powered by the ultimate multi-usage atomizer Survive any situation with the following quick-fit configurations: Quad-Flex RDTA - drop-wicktank with dual or single airflow Quad-Flex RDA with Turboline top airflow Quad-Flex squonker(bottom feed) RDA with Turboline top airflow Nautilus X 2ML top airflow flavor ta...