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The GRAV® Upright Bubbler is 7" tall and made on 44mm tubing. Its fission downstem diffuses smoke through water and is fixed inside the bubbler to prevent damage. 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 cup bowl and works best with approximately 2" of water. Can also be used with a GRAV® 14mm 90° Male Banger.