The Kanger Vola Tank is an extraordinary addition to the sub-ohm market, partially due to its stealthy styling, large 4ML e-liquid capacity, its top filling design, adjustable bottom airflow control, and of course due to its compatibility with the Kanger Vola Mod. While its detachable structure makes disassembling and cleaning a breeze, the Kanger Vola Sub-Ohm Tank must endure overall maintenance, which means replacing the Kanger Vola R Series Replacement Vape Coils. This 3-pack of Vola R Series Replacement Coils were designed specifically for the Kanger Vola Tank and gives you the ability to keep your Vola Tank in peak working condition at all times. You have the option to choose from the 0.4ohm R2-OCC Nicr Single Core capable of 100W or the 0.2ohm R8-OCC Nicr Quad Core capable of up to 140W. Each coil uses organic cotton, provides ample wicking slots for consistent and steady wicking, and due to its low resistance/high wattage design, these coils will deliver both huge vapor and optimal flavor with any e-liquid you pair with it.