The Utillian 8 Glass Mouthpiece is instrumental to what makes the U8 such a sophisticated device. Due to its slight tint and narrow form factor, cleaning becomes a breeze. This mouthpiece is identical to the original that comes with the Utillian 8 e rig. The bubbler can be purchased separately for those in need of a replacement. To use the glass mouthpiece, fill it up just above the two air holes you will find on its side, and you are ready to start vaporizing. If you are experiencing splashbacks of water when taking a hit, remove a bit of water or reduce the intensity of your inhale.