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UWell Crown 4 Tank

The Crown 4 Tank by UWell has incorporated all the best components of the previous Crown Tanks into one crowning achievement. The Crown 4 comes featured with a new series of Crown coils, possesses a 6mL e-juice capacity, and has a very pristine look. UWell has enabled their new patented self-cleaning appliance that is built into the atomizer core of the new Crown coils. The element is fixed with a compression keeper to absorb surplus e-juice quicker to be used later, resulting in less e-juice being wasted. The Crown 4 employs the pro-FOCS (Professional Flavor Optimization Core System) for better flavor and cloud production.

Free shipping for orders over $1,000.00



Uwell Crown 4 Sub-Ohm 28mm Tank Specifications:

  • Diameter: 24mm
  • Standard Glass: 5mL
  • Bubble Glass Tank: 6mL
  • Superior Stainless Steel Construction
  • Pyrex Glass Reinforcement
  • Quarter Turn Threaded Top Refill System
  • 0.2ohm Dual SS904L Coil (Recommended for 70-80W) 
  • 0.4ohm Dual SS904L Coil (Recommended for 60-70W)
  • Dual SS904L Coil - Corrosion-Resistance
  • Self Cleaning Component
  • Pro-Flavor Optimization Core System (PRO-FOCS)
  • Dual Adjustable Bottom Airflow Control Ring
  • Gold-Plated 510 Connection 
  • Detachable Structure


  • 1x Uwell Crown 4 Tank
  • 1x Spare Glass Tube
  • 1x 0.4ohm Dual SS904L Coil (Recommendedfor 60-70W)
  • 1x.0.2ohm Dual SS904L Coil (Recommended for 70-80W)
  • 1x Bag of O-Rings
  • 1x Instructional Manual
  • 1x Drip Tip Cover

· Do not use or charge with non-approved devices. Overuse of vaping apparatus may cause this product to overheat, malfunction, and/or cause burns or other physical injury.

· Do not leave this product unattended while charging, and do not charge it in your vehicle.

· Do not modify or attempt to disassemble this product. Use accordingly.

· Always turn off your vaping apparatus in between uses.

· Do not attempt to fix, correct, replace, or install any part of the vaping apparatus.

· Electronic cigarettes, personal vaporizers, and e-liquids are not approved by the FDA.

· We DO NOT recommend building/wrapping a coil lower than 0.3Ω in resistance.

· Cease the use of any equipment if there are any slight indications of malfunction.

· Mechanical mods and hybrid connection mods are advanced user items. Please understand all safety procedures before attempting to use.

· WARNING: Some tanks are made from polycarbonate and is not suitable for e-liquid use as some flavors might affect its structural integrity causing it to craze or crack. Please check and see if your tank is made from a suitable material (like glass, Pyrex, stainless steel, etc.) when using citrus, cinnamon, and tea flavors.


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