UWELL Crown 4 Tank



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 THE UWELL CROWN 4 TANK is constructed with hand-polished stainless steel and the classic 'Royal Crown' coil head chamber cap, this 4th version is extremely durable and gorgeous to boot.

With the installed bubble glass tube, this tank can hold a hefty 6ml of e-juice, but also includes a slimmer glass tube that can hold 5ml of e-liquid.

The biggest addition to this series of tanks is the UWELL Crown 4’s new patented self-cleaning technology. Each Crown 4 coil is designed with a condensation holder that will collect any un-vaporized e liquid during regular usage and feed it back up into the coil. This helps reduce the amount of wasted e-liquid, and reduces the need to clean the inside of your tank as often.

Moreover, these all-new coils also boast UWELL’s patented Pro Flavour Core Optimisation System (or Pro-FOCS). Pro-FOCS recycles the air through the core of the atomizer two times to saturate your draw with additional flavour.

The Crown IV Tank sports a simplified quarter-turn threaded top fill system for faster refills, along with an adjustable airflow slot at the bottom to provide smooth air intake. This Crown Tank’s striking visual design is augmented by hand-polished stainless steel which is notched at the top and bottom to make airflow manipulation and refilling your tank easier.

With stunning design elements, patented airflow technology, and the use of all new advanced dual helix coils, the Uwell Crown 4 Tank brings a royalty level of class to the world of Vaping!


What's in the Box?

Main Features & Specifications
  • Hand Polished Stainless-Steel Construction
  • Patented Self-Cleaning Technology
  • Pro-Flavour Optimisation Core System (Pro-FOCS)
  • Dual Helix Coil System
    • Dual SS904L 0.2ohm Coil
    • Dual SS904L 0.4ohm Coil
    • SS304 UN1 0.25ohm Coil
    • FeCrAl UN2 0.23ohm Meshed Coil
  • Convenient Quarter-Turn Top Fill Design
  • Bottom Adjustable Airflow Control
  • Gold-Plated 510 Connection
  • Construction Material
    • Stainless Steel
    • Quartz Glass
    • Silicone Seals
    • Resin
  • Fluid Capacity
    • 5mL - Straight Glass (pre-installed)
    • 6mL - Bubble 'Fat Boy' Glass
  • Dimensions
    • Base Diameter: 25.7mm
    • Glass Diameter: 28mm (6mL glass)
    • Height: 54.8mm
  • Thread Connection: 510 Pin
  • Weight: 55g 

Replacement Parts


  • 3 Months Manufacturers Replacement (excluding coil heads & glass)

  • Always 'prime' coil with e-liquid prior to use. 5 minute 'prime & sit' time recommended. Failure to do so may lead to the cotton being burnt within the coil head, this will lead to an unpleasant 'burnt' taste making the coil head unfit for use.
  • Thoroughly dismantle, clean and inspect all tank components for wear, faults or replacement of rubber O-rings and or seals. Failure to do so may cause the newly installed coil head to not work correctly and may even damage preventing further use.
  • Do not attempt to clean used coil heads with water, this will lead to the coil wire rusting and should be strongly avoided. However, if the coil head needs to be 'freshened' due to a change in e-liquid flavour then we recommend the use of isopropyl Cleaning Alcohol. Simply submerge coil head in a small cap full of isopropyl and lightly agitate and even use an old tooth brush to gentle clean away any contaminants. CAUTION: Allow the coil head to FULLY DRY in a shaded dry area before use.