If your phantoms dual quartz wax tank starts acting up on you from all that rigorous use , it may be time to get a new tank. These tanks are high quality with performance parts and built with the end user in mind. With a compact covered bowl that has ceramic walls this unit keeps it concealed and also has a screen to block anything aside from vapor flowing through the mouthpiece. Keeping a couple of extras in your collection or for travel is never a bad idea. ...- Stay Lifted and roll Phantom.