The large GRAV® Upright Bubbler is 9" tall and made on 50mm tubing. Its fission downstem diffuses smoke through water and is fixed inside the bubbler to prevent damage. Its Dewar-sealed joint is flush with the body of the bubbler, maximizing the pipe's internal volume. Its angled mouthpiece acts as a splashguard, and its lip wrap is tooled for comfort. The upright bubbler comes ready to use with a 14mm funnel bowl and works best with approximately 2" of water.
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