Here you will find coils and automizer heads for replacement with keratomizers or clarifiers. The coils and heads usually come in packages of 5 units and various resistances from 0.15 ohms to 2.5 ohms. In addition there are improved coils with double, square alcohol, etc. that give increased output. Coils should be replaced once in a while depending on use in order to enjoy the maximum evaporation experience.