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Tech Specs

Uwell Crown 4 Tank:

  • 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
Included With Product
  • 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
Shipping And Returns

We offer shipping through FedEx, UPS, and USPS. We also offer will call pick-up free of charge. Check out our wide range of options below:

Free shipping
for orders over $500.00
  • FedEx

    (Same-day shipping before 1 P.M. PST [Mon-Fri])

    • Ground
    • Express Saver
    • 2 Day
    • 2 Day AM
    • Standard Overnight
    • Priority Overnight
    • First Overnight
  • UPS

    (Same-day shipping before 1 P.M. PST [Mon-Fri])

    • UPS Ground
    • UPS Three-Day Select
    • UPS Second Day Air
    • UPS Second Day Air A.M.
    • UPS Next Day Air Saver
    • UPS Next Day Air
    • UPS Next Day Air Early A.M.
    • UPS Second Day Air Saturday
  • USPS

    (Ships within 1 business day)

    • Priority Mail 3-Day
    • Priority Mail Express 2-Day
  • In-Store Pick Up

    (Ships within 1 business day)

    • Pick up in Baldwin Park, CA
  • EC Supply Inc. only allows returns in the form of exchanges on manufacturer defective products. Defective products may be returned within a 45-day warranty service period for the following manufacturers (does not inlcude battery and charger sales):

    • Aspire
    • Innokin
    • Joyetech
    • Kangertech
    • Lost Vape
    • SMOKtech
    • The Council of Vapor
    • Wismec
    • Sigelei (currently stocked products only)
    More About Our Warranty Service Policy

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.

Get Uwell Crown 4 replacement coils here!


Grouped product items
UWell - Crown 4 Tank - SS
Stainless Steel
Out of stock
UWell - Crown 4 Tank - BLK
Out of stock
UWell - Crown 4 Tank - GRN
Out of stock
UWell - Crown 4 Tank - BLU
Out of stock
UWell - Crown 4 Tank - IRDSCNT-RNBW
Iridescent Rainbow
Out of stock
UWell - Crown 4 Tank - PUR
Out of stock
Free shipping
for orders over $500.00