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Control the airflow – Release the carb hole for an effortless draw
Bold Handgun Design: This bong features an innovative and fun handgun design
Built-in bubbler function – Water filtration for smoother hits
25 inches tall
Gravitron 2.0 (Large) Big Hitter Bongs Control the airflow – ReleaseGRAV LARGE GRAVITRON The world's first all glass gravity bong smoking system got a facelift. This new and improved version 2. 0 Gravitron boasts a fivefold increase in glass thickness and upgraded platinum cured silicone grommet for a tighter seal. The 19 mm female ground joint now fits any 18. 8 mm male bowl and the flange at the top of the neck makes lifting the bottle a breeze. The Gravitron creates big, efficient hits though gravity and pressure.