The 14mm GRAV® Adjustable Downstem can extend anywhere from 4" to 6" and is compatible with any 14mm beaker or straight-based water pipe with an angled joint. The two halves of the downstem are held together by a custom fitted segment of heat shrink tubing. Its tri-cut showerhead diffuses smoke through water, and its adjustable length is perfect for any amount of water. It fits into a 19mm joint and receives a 14mm bowl or banger.