GRAV Upline Glass Bong – 12″ – 14 mm

Meet GRAV’s Upline—an eye-catching glass bong that stacks cooling power in a tower of mini chambers. The signature ladder perc and angled mouthpiece work together to smooth every pull while keeping splashback at bay.

Key Features & Specs

• Size & weight: 12″ tall; ~365 g
• Made on durable 38 mm borosilicate tubing
• Ladder perc “bubbler chambers” for thorough wash & filtration
• Vertical downstem helps catch ash in the base
• 14 mm female joint; includes GRAV 14 mm Octobowl
• Best performance with ~1″ of water
• Compatible with dry herb out of the box; add a 14 mm banger for concentrates (sold separately)
• Clear glass with subtle GRAV® Upline® branding

Why You’ll Love It
Each restriction in the neck creates its own mini chamber, so smoke and water climb together, cooling and refining flavor before it reaches you. The compact 12″ profile hits like a much larger piece, and the angled mouthpiece acts as a built-in splashguard for clean, comfortable sessions.

Care & Usage Tips

• Fill just enough to cover the downstem (about 1″ of water) to maximize the Upline’s stacking action.
• For easy cleaning, use Formula 420 cleaner or isopropyl alcohol with coarse salt; rinse thoroughly.
• Swap the Octobowl for a 14 mm quartz banger when you want to run concentrates.

Intended for legal use by adults 21+. Keep out of reach of children.

Ready to level up your daily driver? Grab the GRAV Upline and enjoy smoother, cleaner draws in a compact, statement piece.