Wotofo Profile Unity RTA is a successful cooperation by MrJustRight1, Vapor Chronicles and Wotofo. The top cap is designed with cap tongue, which can slide into the tank groove perfectly, no leakage and easy to refill. The adjustable airflow system brings soft, stable and smooth vaping experience. It is optimized from Profile RDA deck, easy to build. Moreover, utilizes OFRF nexMesh coil to provide huger clouds and intense flavor. The Profile Unity RTA features deck-chamber linkage system that ensures steady incoming air and coil-focused air supply. New drip tip adopts fairly thick resin Tongue & Groove top cap avoids leakage, easy refill 3.5ml/5ml Capacity available Adjustable airflow system brings soft and smooth vaping experience Powered by nexMESH OFRF mesh coil Deck-chamber linkage system Top filling method Mesh coil type Adjustable mid airflow 510 threading connection 25mm diameter Brand: Wotofo Model Profile Unity Tank Capacity 3.5ml/5ml Diameter 25mm Size 48 x 25mm