GRAV® Large Gravitron® - Replacement Base Size|6.9 oz The 19 mm female ground

The 19 mm female ground joint now fits any 19 mm male bowl and the flange at the top of the neck makes lifting the bottle a breeze

Our ornament features the playful Tits The Season design

50mm diameter by 5mm thickness

But what sets this bubbler apart is its innovative freezable glycerin chamber

GRAV® Large Gravitron® - Replacement Base Size|6.9 oz The 19 mm female groundIf your Large Gravitron has a broken part, well help you return it to working conditions. This replacement base for the Gravitron gravity bong fits the Larger Gravitron. The bottle part slides into the base to create the suction that helps create big gravity bong hits.