Grav Labs 8' Beaker Water Pipe w/ Fixed Downstem When it's time to conduct your ultra important experiments in greenery, only the 8" GRAV Beaker will do. The beautiful clear glass with black accents allows you to see all the inner workings of your lab project. This water pipe includes a fixed fission downstem that diffuses smoke through water, and prevents the damage potential of removable downstems. That diffusion will also give you ultra smooth hits in a compact piece. Another well calculated detail is the geometric pressed pinch, which doubles as a splash guard and an ice catcher. The Beaker comes ready to use with a 14mm GRAV Cup Bowl included. For best results we recommend using this water pipe with 1.5" of water and a spirit of scientific curiosity.