You asked to keep the liquid flow shut off when filling but still wanted user replaceable glass.  We delivered. 

In addition to the above features, we’ve also added:

• The ability to replace the coil without liquid draining whether the tank is upside down OR right side up.
• A sexy new dual tone look with additional color beauty rings that can be purchased separately to customize the look of your tank. 
• A higher wattage Z-Coil with more airflow for a restricted direct lung (RDL) vape. 

All this while maintaining the great mouth to lung (MTL) vape the Zenith has become known for and completely compatible with the entire exiting Z-Coil line.

In The Box:

• 1 x Zenith Pro
• 1 x Coil Zenith Pro 1.0Ω (20-25W)
• 1 x Coil Zenith 1.2Ω (10-14W)
• 1 x Accessory set
• 1 x User manual

Characteristics:

• Diameter: 25mm
• Capacity: 2ml
• Drip Tip: 510
• Pin: 510
• Size: 25*42mm
• Adjustable airflow
• Top filling system
• Compatible nicotine salts