The Crown IV Tank by Uwell is one of the most advanced tanks in the Crown series, combining premium build quality with innovative performance features. Designed for sub-ohm vaping, it enhances flavour production, vapour density, and overall efficiency.

Built with durable stainless steel and reinforced Pyrex glass, the Crown IV offers a solid and stylish construction. The improved quarter-turn top-fill system allows for faster, cleaner refilling, while the patented self-cleaning technology reduces condensation build-up by absorbing excess e-liquid into a chamber that can be vaporised later. This minimizes leakage and reduces the need for frequent cleaning.

The tank also incorporates Uwell’s Pro-FOCS (Pro Flavour Core Optimisation System), which recycles airflow through the coil core twice to intensify flavour and deliver a smoother, more saturated vape. A protective drip tip cover is included to keep dust and debris out when not in use or during travel.

Specifications

Diameter: 28mm
E-Liquid Capacity: 2ml
Material: Stainless Steel with Pyrex Glass
Gold-Plated 510 Connection
Quarter-Turn Top Fill System
Patented Self-Cleaning Technology
Pro-FOCS Flavour Technology

Included Coils

0.4Ω Dual SS904L Coil (Rated 60–70W)
0.2Ω Dual SS904L Coil (Rated 70–80W)

What’s in the Box

1 × Uwell Crown IV Tank
1 × Spare Glass Tube
1 × 0.4Ω Dual SS904L Coil
1 × 0.2Ω Dual SS904L Coil
1 × Pack of O-Rings
1 × Drip Tip Cover
1 × User Manual

Uwell Crown IV Tank