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GRAV Gravitron 2.0 Gravity Bong - 2 Sizes

GRAV Gravitron 2.0 Gravity Bong - 2 Sizes

$69.90 - $85.00
$69.90
$69.90 - $85.00
$69.90

⭐ Expert Product Summary

The GRAV Gravitron 2.0 Gravity Bong - 2 Sizes reimagines classic hydro-suction combustion smoking into an elegant, high-performance scientific borosilicate centerpiece. Redesigned with a substantial 5x glass thickness upgrade over the original generation, the Gravitron 2.0 features a straight-sided borosilicate outer base and a heavy inner bottle equipped with an ergonomic flanged neck and a platinum-cured silicone grommet base. This grommet provides total containment, airtight vacuum suction, and cushioned protection against glass-on-glass impact. Available in two size configurations—Medium (9" tall w/ 14mm joint) and Large (11" tall w/ 19mm joint)—each unit includes a custom ground glass funnel-style male dry herb slide. 

Hydro-Vacuum Pressure & Platinum-Cured Silicone Cushioning: GRAV Gravitron 2.0 Features

Transform raw physics into the smoothest, highest-density dry flower draws imaginable with the GRAV Gravitron 2.0 Gravity Bong - 2 Sizes. As the world’s first all-glass gravity bong reinvented for the modern connoisseur, GRAV’s 2.0 overhaul replaces makeshift plastic containers and thin glassware with heavy-wall, thermal-shock resistant scientific borosilicate glass. By relying on pure downward hydrostatic vacuum pressure rather than human lung power to draw and cool the combustion cloud, the Gravitron 2.0 delivers dense, unadulterated vapor with zero wasted flower.

Every engineering element of the Gravitron 2.0 has been upgraded for seamless daily function. The base of the inner bottle features an ultra-durable, food-grade platinum-cured silicone grommet that forms a tight hydraulic seal while eliminating glass-on-glass clinking when bottoming out in the outer base. Up top, a custom flanged neck provides an ergonomic, non-slip grip when slowly hoisting the inner chamber as it fills with milky smoke. Available in a compact Medium 9-inch model (14mm joint) and a massive Large 11-inch model (19mm joint), both sizes come equipped with a matching ground glass funnel-style male herb slide for instantaneous session readiness.

GRAV Gravitron 2.0 Gravity Bong Specifications

  • 2 Size Configurations: Choose between Medium (9" Tall / 14mm Joint) or Large (11" Tall / 19mm Joint).
  • Hydrostatic Vacuum Extraction: Water gravity pulls dense, milky smoke into the chamber with zero lung strain.
  • Upgraded Heavy-Wall Borosilicate: Engineered with significantly thicker boro glass walls for impact resistance.
  • Platinum-Cured Silicone Grommet: Protects against glass-on-glass collision while maximizing suction containment.
  • Ergonomic Flanged Neck: Flared collar ensures a secure, comfortable two-finger grip when lifting and clearing.
  • Funnel-Style Male Herb Slide Included: Each unit ships with a custom high-airflow glass flower slide matched to its joint size.
  • Zero-Waste Combustion Mechanism: Internal vacuum pressure captures 100% of the bowl's smoke with zero ambient loss.
  • Minimalist Straight Cylinder Base: Wide, flat-bottom outer water cylinder provides exceptional tabletop stability.
  • 100% Inert Vapor Pathway: Medical-grade glass and platinum silicone preserve original flower terpene fidelity.
  • Effortless Disassembly & Cleaning: 2-piece modular glass construction separates completely for fast isopropyl maintenance.

What’s Included (By Selected Size)

  • Medium (9-Inch):
    • 1 x GRAV Gravitron 2.0 Medium Outer Glass Base (9" Height)
    • 1 x GRAV Gravitron 2.0 Medium Inner Glass Bottle w/ Platinum Silicone Grommet
    • 1 x 14mm Male Borosilicate Funnel Herb Slide
  • Large (11-Inch):
    • 1 x GRAV Gravitron 2.0 Large Outer Glass Base (11" Height)
    • 1 x GRAV Gravitron 2.0 Large Inner Glass Bottle w/ Platinum Silicone Grommet
    • 1 x 19mm Male Borosilicate Funnel Herb Slide

GRAV Gravitron 2.0 Gravity Bong FAQs

How does the GRAV Gravitron 2.0 work?

Fill the outer cylindrical base with water, leaving roughly 1.5 to 2 inches of space at the top. Push the inner glass bottle all the way down until the silicone grommet rests against the base. Pack dry flower into the included funnel bowl, seat it in the top joint, and light the herb while slowly lifting the inner bottle by its flanged neck. The resulting downward water vacuum pulls smoke into the bottle. Once filled, remove the bowl slide, place your lips over the mouthpiece, and push the bottle downward to deliver a pressurized stream of cool, dense smoke.

What is the purpose of the platinum-cured silicone grommet on the bottom?

The platinum-cured silicone grommet serves two essential functions: it acts as a shock-absorbing bumper that prevents the inner glass bottle from chipping when dropped into the outer beaker, and it creates a snug hydraulic seal that ensures total smoke containment and maximum vacuum suction during the lift.

How do I clean and maintain the Gravitron 2.0?

Remove the glass funnel slide and slip the platinum silicone grommet off the bottom of the inner bottle. Clean the two glass cylinders with 91%+ Isopropyl Alcohol and coarse salt, swirling the mixture to strip away resin buildup. Rinse both glass parts and the silicone grommet thoroughly with warm water, let dry, and slip the grommet back onto the bottom of the bottle before your next session.