The 14mm GRAVAdjustable Downstemcan 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

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