The iSub Apex Tank is a new version tank of Innokin. It features 3ml capacity and PRISM Flavor+ Boost airflow system for maximal flavor. The Prism Flavor+ system is designed to draw airflow through the dual raised intakes located in the top half of the barrel, directing airflow into the heated outer chamber then back through the actual iSub coil, delivering a different and unique vape experience that enhances flavor while minimizing leaks. The Solid Spin Top Fill System refills quickly and cleanly and the raised adjustable airflow minimizes leaking and maximizes performance. Compact and quiet, the sleek high quality 100% Stainless Steel body and Pyrex Glass tank have been engineered for durability as well as outstanding flavor and cloud production. The iSub Apex is compatible with all 2.0Ω, 0.5Ω and 0.2Ω iSub Coils which are made with high quality 100% Japanese organic cotton for fast wicking and pure flavors.