Crown IV / 4 Tank by Uwell

$39.95 GST Inc

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Crown 4 / IV Tank by Uwell

The UWELL Crown 4 / IV sub ohm tank is the ultimate flagship when it comes to tank structure. A simplified threaded top-fill system allows for a maximum capacity of 6ml. The self-cleaning technology within the atomiser core absorbs excess e-juice into a condensation holder preventing the coils from spitting and clogging up. The patented Pro Flavour Core Optimisation System, or Pro-FOCS for short, recycles the in-taken air twice through the core of the atomiser to saturate the recycled draw with additional flavour from the vaporised e-juice.

The Crown IV Tank hosts a simplified quarter-turn threaded top fill system for faster refills. Furthermore, the Crown 4 has a visually striking design, being hand-polished and knurled at the top and bottom ends, making airflow manipulation and unscrewing of the top fill system even easier.


  • 28mm Diameter
  • 5mL Standard Glass
  • 6mL Bubble Glass
  • Superior Stainless Steel Construction
  • Pyrex Glass Reinforcement
  • Quarter Turn Threaded Top Refill System
  • Self Cleaning Technology Pro-Flavour Optimisation Core System
  • Dual Knurled Adjustable Bottom Airflow Control Ring
  • Gold-Plated 510 Connection
  • Detachable Structure

Crown IV Coils: 

  • 0.2ohm Dual SS904L Coil – rated for 70-80w
  • 0.4ohm Dual SS904L Coil – rated for 60-70w
  • 0.23ohm FeCrAl UN2 Coil – rated for 60-70w

Available in Black, Blue, Green, Rainbow, Purple, Stainless Steel  


  • 1 Uwell Crown IV (4) Tank
  • 1 Spare Glass Tube
  • 1 0.4ohm Dual SS904L Coil – rated for 60-70w
  • 1.0.2ohm Dual SS904L Coil – rated for 70-80w
  • 1 Pack of O-Rings
  • 1 User’s Manual
  • 1 Drip Tip Cover