The renowned Crown series returns in 2018 with the Uwell Crown 4, an evolutionary update to one of the most beloved subohm tank platforms in the history of our industry presenting a whopping 28mm diameter base chassis with a 6 milliliter max e-liquid capacity along with the new and improved Crown IV Parallel Coil Design. The Crown 4 coils are top notch. The Crown 4 measures 28mm in base diameter and features sleek and smart design elements that combine for a universally appealing design. The Crown 4 features a 90 degree threaded top fill method that unscrews to reveal dual fill ports. The Crown 4 utilizes the new and improved Crown 4 Plug and Pull replacement coil style, with a thread-less design that features reinforced seals to provide a liquid tight fit and finish. This tank performs great when paired with delicious E-liquid, Starter Kits or Sub-Ohm tanks.