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Uwell Crown 4 IV Sub Ohm Tank

Retail Price: $37.95 (You save $10.00)
Customer Rating:
5 Stars
In Stock

Product Description

 The Uwell Crown 4 IV Sub Ohm Tank is the latest tank to be released from the acclaimed best tank manufacture in this industry. The Uwell Crown 4 Tank introduces a new line of Crown coils with material improvements, a simplified threaded top-fill system with 6mL maximum capacity, and a striking visual design. The Uwell Crown 4 presents a brand new patented self-cleaning technology within the atomizer core of the new Crown line of coils, absorbing excess eJuice into a condensation holder for later vaporization during usage. This helps reduce on wasted eJuice and lessens the need to clean the detachable structure of the tank. In addition, within the atomizers is the patented Pro Flavor Core Optimization System, or Pro-FOCS for short. This system recycles the in-taken air twice through the core of the atomizer to saturate the recycled draw with additional flavor from the vaporized eJuice. Also, the Crown IV Tank hosts a simplified quarter-turn threaded top fill system for faster refills and less downtime between cloud chucking sessions. 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.


  • Uwell Crown 4 Sub Ohm Tank
  • 28mm Diameter
  • 5mL Standard Glass Tank Capacity
  • 6mL Bubble Glass Tank Capacity
  • Superior Stainless Steel Construction
  • Pyrex Glass Reinforcement
  • Quarter Turn Threaded Top Refill System
  • Uwell Crown 4 Coil Line
  • 0.2Ω Dual SS904L Coil - Rated for 70-80W
  • 0.4Ω Dual SS904L Coil - Rated for 60-70W
  • Dual SS904L Coil - Corrosion-Resistance
  • Double Helix Mesh Coil - Heats Evenly, Better Flavor
  • Self Cleaning Technology
  • Pro-Flavor Optimization Core System
  • Dual Knurled Adjustable Bottom Airflow Control Ring
  • Gold-Plated 510 Connection
  • Detachable Structure
  • Available in Black, Blue, Green, Rainbow, Purple, Stainless Steel

Replacement Coils can be Purchased HERE

What's Included

  • 1-Qty Uwell Crown 4 Tank
  • 1-Qty 0.4Ω Dual SS904L Coil
  • 1-Qty 0.2Ω Dual SS904L Coil
  • 1-Qty Spare Pyrex Glass Tank
  • 1-Qty Pack of O-Rings
  • 1-Qty Drip Tip Cover
  • 1-Qty User Manual
  • Authenticity Code Inside Retail Packaging

Due to the nature of this product there is No Warranty on any of our Tank Atomizers.
This product is for experienced users and requires technical knowledge in order to properly use it.

Warranty Information

This item is inspected to be cosmetically defect-free and in perfect working condition. Please note, we do not accept returns and or exchanges on this item for sanitary & hygienic purposes. This product does not have a manufacture warranty against manufacture defects and all sales are final. For more information please see our Terms & Returns Page. Feel free to ask us any further questions regarding this product by using our Contact Us page.

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Product Reviews

Write your own product review

  1. Crown 4 5 Star Review

    Posted by on

    I love this tank all the way back to when I started vapeing, one of my first set up was a evic mini,and a crown first one that was out at the time still have it after 4years.i make my own coils these days, I was looking online came across the crown 4.blue is a favorite color of mine, ordered it love the looks & taste perfect coil set up, do I enjoyed it so much, I bought the whole set of crowns,and the sub ohm pos, looks great on my pos, Sub ohm paranormal,250c witch is one of the best 2 battery mods one hell of a combo, great service with this company my only request is that they get a point system in to use on products, thanks Mike from South Georgia

  2. Best. Tank. Ever. 5 Star Review

    Posted by on

    And that is coming from someone who insisted on nothing but using RDAs. It's amazing. Trust me.

  3. very good 5 Star Review

    Posted by on

    The coils that came with it were just ok, if you really want to experience this tank for an extra 10-12 bucks get the mesh coils, I think they might just beat out the the falcon coils! All so I'm getting about 8-12 days per coil which is very good for a sub tank!!!

  4. Nice 5 Star Review

    Posted by on

    Great tank, clean looks. The bottom airflow was a little tight to move at first but its great now, stays where you set it. Coil was hard to get out, used pliers with grip to pull it out, no damage done. I suggest putting a little juice on the orings of the coil to make it easier for people like me who cant grow out their nails. Top fill works nice, the cap is secure. I chain vape sometimes and the top cap gets warm, but not bad. The coils work great, good flavor and all, despite people complaining about no mesh. Says to be used between 60-70 watts, but it works great below those too, so dont be intemidated if youre not one to crank it up.
    Nothing to complain about. Nothing.

  5. AWESOME 5 Star Review

    Posted by on

    If you loved the crown 3, hold onto something when you try this crown 4. It's everything. The airflow is better, the flavor is better and the draw is perfect, It's not tall, it holds like 6ml of juice and it sure is pretty. Love the 1/4 turn cap. It feels really secure.

    Just get one. The price is ridiculously cheap for the quality of this tank.