U-well introduce a new member to the best selling Crown family, the Crown 4 tank. With advanced patented self-cleaning technology, the tank can absorb the e-juice in the condensation holder through regular usage and Re-vaporize it. The tank features an easy to operate 90° twist top fill design and bottom adjustable airflow system.

Features:

• Innovative patented self-cleaning isolation technology. No leakage
• SS & Pyrex Glass construction
• Compatible with Dual SS904L coil and Double helix mesh coil 
• Dual SS904L coil brings better corrosion resistance
• Mesh coil heats evenly, produce excellent flavour
• Top filling design, easier to refiling
• Adjustable bottom airflow system