Grav Labs 8" Beaker Water Pipe - Clear When it's time to conduct your ultra important experiments in greenery, only the 8" GRAV Beaker will do. The beautiful clear glass allows you to see all the inner workings of your lab project. This water pipe includes a fission downstem that diffuses smoke through water and is fixed in place to prevent damage. That diffusion gives 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 pipe with about 1.5" of water and a spirit of scientific curiosity.