Four. Downstem – This can be the long glass tube that connects a bowl to some bong and directs the movement of smoke into your bong’s h2o chamber. Downstems can both be “Fixed” (welded forever into place) or “Removable. Silicone is effect, heat, and smell evidence. Many silicone bongs have https://www.lookah.com/bongs-and-water-pipes/