The Aspire Quad-Flex 4-in-1 is a multi-device package that allows four configurations of atomizer.
Quad-Flex 4-in-1 has the following quick-fit configurations:
*Quad-Flex RDTA - drop-wick tank with dual or single Airflow
*Quad-Flex RDA with Turboline Side Airflow
*Quad-Flex squonker (bottom feed) RDA with Turboline Top Airflow
*Nautilus X 2ML Top Airflow flavor tank