Coils can be considered as the 'filters' of your vape device, they typically consist of a heating element & cotton which acts to absorb your e-liquid which ultimately heats up to create vapour. We stock some of the most widely used & popular replacement coils on the market, be sure to choose the correct type which is compatible with the tank you use. Coils always have a resistance & a wattage range, they will also state the wattage range at which they are at their optimum performance.