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UWELL Crown IV Tank
UWELL Crown IV Sub Ohm Tank
UWELL Crown IV Sub Ohm Tank

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UWELL Crown IV Sub Ohm Tank

Our Price: $34.95

Availability: Usually Ships in 24 to 48 Hours

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UWELL Crown IV Sub Ohm Tank

Product Introduction:

The Crown 4 from Uwell sports a lot of new additions! There is a new ninety degree twist-and-lock top cap that opens to reveal a continuous well with four points of entry for juice filling, making filling much easier and less messy. The super easy twist-and-lock sealed top cap makes sealing the tank back up easier than the competition.

The Crown 4 features a standard color-matched 510 drip tip, and new 28mm bubble glass as standard. The bubble glass holds a maximum of 6ml of vape juice. Behind the three massive airflow slots hides some clever tech that helps recirculate any excess juice that may have found its way into the base back into the coil to be vaporized.

This self-cleaning technology not only helps to reduce leaking, but it also helps to cut down on waste, cleaning, and over-saturated coils. The high quality SS904L stainless steel wire in the new coils gives longer life and better flavor, and when paired with all the improvements and innovation the Crown 4 offers a particularly pleasant vape experience.

Uwell has once again improved on previous designs, clearly spending an impressive amount of time and effort on the Crown 4 that is seldom seen in the world of vaping. The hand-polished finish gives this a tank an elegant look to hold up to the competition, even though Uwell is leading the pack on innovation alone.

Staff Recommendation:

I personally enjoy the 0.2 ohm Dual SS904L coil, the heat and flavor is on point at 75 watts with the airflow about halfway cut off. If you like custard flavors, try it out with the Autumn Haze! - Paul


  • Innovative patented self-cleaning techonlogy, no leakage
  • SS & Pyrex Glass construction, durable and gorgeous
  • Compatible with Dual SS904L coil and Double helix mesh coil
  • Dual SS904L coil brings better corrosion resistance
  • Mesh coil heats evenly, produce excellent flavor
  • Top filling design, easier to refilling
  • Adjustable bottom airflow system

  • Size: 28*54.8mm
  • Material: Stainless Steel, Glass & Silicone
  • Coil type: Dual SS904L Coil 0.2ohm (70-80W), Dual SS904L Coil 0.4ohm (60-70W), SS304 UN1 Coil 0.25ohm (55-65W), FeCrAl UN2 Coil 0.23ohm (60-70W)
  • Capacity: 6ml/5ml(extra straight glass)

It Comes With:
  • 1 x Crown IV Tank
  • 1 x Extra glass
  • 1 x 0.4ohm coil(pre-installed)
  • 1 x 0.2ohm coil
  • 1 x pack of replacement O-rings
  • 1 x User manual
  • 1 x Drip tip cover

How To Prime Your Uwell Crown 4 Coil:

  • First off, you want to unscrew the bottom base from the top section counter clockwise to gain access to the coil.
  • Pull the coil out from the mid-section of the tank
  • Holding the coil sideways, add some juice into the center of the coil
  • When the wick holes on the side of the coil look wet and shiny, the coil is fully primed
  • Wrap the coil in a tissue and shake out any excess juice
  • Press the coil back into the tank
  • Screw the base back onto the tank
  • You're ready to fill!

How To Fill The Uwell Crown 4 Tank:

  • Push down on the top cap and rotate it ninety degrees counter-clockwise. This may take some force, especially when the tank is brand new
  • Add your juice to the tank through any of the four slots under the top cap, ensuring that no juice gets into the round hole in the center
  • You can pretty much fill all the way to the top, but you do want to leave at least a little bit of air in the top of the tank
  • Once the tank is filled, replace top cap, then push down and twist the cap ninety degrees clockwise. You should feel the cap completely stop, which means your tank is sealed
  • Now you're ready to vape!

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