The Volt E-Vapor Heating Coil is a replacement part intended for use with the Volt E-Vapor hookah Bowl. The Volt E-Vapor Heating Coil will eventually wear out and need to be replaced in the Volt E-Vapor Clearomizer Hookah Flavor Tank. Replacing the Heating Coil on the Volt E-Bowl is quite simple: Unscrew the top of the flavor tank, take out the old coil, insert the new replacement Heating Coil, and screw the top of the flavor tank back on. Please remember that the Volt E-Vapor Heating Coil should never get wet. If you need to clean this part, pour out the remaining e-liquid in the clearomizer and gently wipe the parts down using a soft cloth.