The Uwell Crown 4 Tank is the latest addition to the popular Crown series, featuring innovative patented self-cleaning technology that absorbs and re-vaporizes e-juice from the condensation holder, minimizing leakage. Constructed from durable stainless steel (SS) and Pyrex glass, this tank is built to last. It is compatible with Dual SS904L coils, which offer superior corrosion resistance, and Double Helix mesh coils for even heating and exceptional flavor production. The tank’s user-friendly design includes a 90° twist top-fill system for easy refilling and an adjustable bottom airflow system to customize your vaping experience.