The Aqua Bubbler vape pen attachment is compatible with any 510 threaded eGo battery. The bubbler includes an all ceramic base with a ceramic rod coil. The purpose of this attachment or vape pen mod is for you to cool your vapor down using water percolation. When heating wax, shatter, crumble or any thick waxy oil, the temperature is usually between 500°F-600°F. Using the bubbler, you will be able to take a smooth hit greatly lowering the chance of coughing.