GRAV Gravitron Gravity Bong – Modular Glass System
Trying to decide between a glass gravity bong vs a regular bong? The Gravitron is designed to produce denser hits with less effort.
The GRAV Gravitron Gravity Bong is known as the world’s first all-glass gravity bong system, built to deliver dense, powerful hits with precision airflow. If you’re looking for a Gravitron bong that produces stronger pulls with less effort, this is one of the most efficient systems available.
Designed by GRAV, this gravity bong system uses water displacement and an airtight seal to create thick, controlled smoke—without the harshness of traditional setups.
Features
True Gravitron System – Engineered for dense, pressurized hits
Modular Glass Design – Easy to clean and maintain
Airtight Silicone Seal – Consistent performance with every use
Borosilicate Glass Construction – Durable and heat-resistant
Multiple Variants Available – Medium, Large, Monarch, Limited Editions
Lift-Activated Function – Smooth, controlled airflow
Standard Joint Compatibility – Fits 14mm or 19mm male bowls (model dependent)
How It Works
Fill the base halfway with water, pack the bowl, and insert it into the joint. Light the bowl while lifting the chamber to fill it with dense smoke. Remove the bowl, then inhale as you lower the chamber for a smooth, pressurized hit.
Why People Choose a Gravitron Bong
Produces stronger hits using less material
Designed for pressurized pulls with minimal smoke loss
Smoother inhale compared to traditional bongs
Simple, beginner-friendly operation
Popular as a party-friendly piece, while still ideal for solo use
Built by GRAV, a trusted name in glass
Product Specifications
GRAV Monarch Gravitron®
Size: 12"
Joint Size: 14mm
Includes: 14mm funnel bowl
Material: Borosilicate glass
Design: Scalloped glass
GRAV x Breathe Again Gravitron®
Size: 11"
Joint Size: 14mm
Includes: 14mm funnel bowl
Special: Limited edition collaboration
Seal: Silicone grommet
GRAV Large Gravitron® 2.0
Size: 11"
Joint Size: 19mm
Includes: 19mm funnel bowl
Glass: Ultra-thick (5x thicker)
Seal: Platinum-cured silicone
Feature: Lift flange
GRAV Medium Gravitron® 2.0
Size: 9"
Joint Size: 14mm
Includes: 14mm funnel bowl
Glass: Ultra-thick
Seal: Platinum-cured silicone
Feature: Lift flange
What’s in the Box
Glass upper chamber
Glass base chamber
Funnel bowl (based on model)
Silicone grommet (on select versions)
Trust & Ease
This isn’t a novelty piece—GRAV gravity bongs are known for durability, precision airflow, and consistent results. Setup takes seconds, and cleaning is straightforward.
FAQ
What is a GRAV Gravitron? A glass gravity bong system that uses water pressure and airflow to create dense, controlled smoke.
Is the Gravitron bong worth it? Yes—it's one of the most efficient ways to get strong, consistent hits with less material.
What’s the difference between Medium and Large Gravitron? Large produces bigger hits, while Medium is more compact and easier to handle.
Is it beginner-friendly? Yes, the lift system is simple and easy to learn.
Is this a glass gravity bong? Yes, all GRAV Gravitron models use borosilicate glass with airtight sealing components.
Questions or need a discount? Reach out to support@421store.com — we’re here to help!
This product—and all products on our site—are intended and sold for legal purposes only.
This gravity bong hits way harder than anything I’ve used
This thing is honestly on another level compared to regular pieces. The way it fills up and delivers the hit is way more intense, but still feels smooth once you get the motion right. It definitely uses less herb but hits much stronger. Love my purchase. Coming back again for more.
R
Ryan McCall
Heavy glass and really strong pulls
The hits felt way stronger than my old bong I think because it use for the gravity and pressure. It fills up with thick smoke fast and feels pretty intense but still smooth. The glass feels heavy and well made, not cheap at all. I like that it’s all glass instead of DIY stuff. Only thing is it’s kinda bulky and not the easiest to move around, so it’s more of a stay at home piece.
Brian Foster
Great flavor in a super portable dry herb vape
The flavor was the biggest surprise for me. The ceramic chamber and precise temperature controls make it easy to get a smooth session, and it heats up really fast. I like this vape, I like this smoke shop. Best of luck guys
AirVape X Dry Herb Vaporizer by Apollo | Hybrid Heating Portable Vape
Lauren Mitchell
Very unique shape and I really like it.
This pipe looks even better in person. The glass feels sturdy and the overall piece has a nice balance to it. I also liked how easy it was to keep clean. The bowl size felt just right for me, and the airflow was smooth.I like my purchase and I will be back for more. thank you all
MJ Arsenal Kettle Glass Pipe | Compact Borosilicate Hand Pipe
Austin Parker
Versatile device with a lot of options
Being able to switch between dipping directly and using it like a traditional concentrate pen makes it feel more flexible than most devices I've tried. It heated up quickly and was easy to get started with. I love my new Dip Devices Dipper. Love 421Store!
Dip Devices Dipper Dab Pen – 2-in-1 Electric Dab Straw
Nathan Cole
Great buy, easy to use and portable
The draw-activated design on this vape pen works really well, and I was surprised by how quickly it was ready to go. It makes short sessions feel effortless. I love how portable it is and how easy the ceramic coils are to replace
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Rick Sangrey
mine is great
very good quality and the right size for my need.
Human Grade 6" Ball Bong – Smooth Compact Mini Bong
The flavor was the biggest surprise for me. The ceramic chamber and precise temperature controls make it easy to get a smooth session, and it heats up really fast. I like this vape, I like this smoke shop. Best of luck guys
This pipe looks even better in person. The glass feels sturdy and the overall piece has a nice balance to it. I also liked how easy it was to keep clean. The bowl size felt just right for me, and the airflow was smooth.I like my purchase and I will be back for more. thank you all
Being able to switch between dipping directly and using it like a traditional concentrate pen makes it feel more flexible than most devices I've tried. It heated up quickly and was easy to get started with. I love my new Dip Devices Dipper. Love 421Store!
The draw-activated design on this vape pen works really well, and I was surprised by how quickly it was ready to go. It makes short sessions feel effortless. I love how portable it is and how easy the ceramic coils are to replace
I like a lot of things about this vape like the weight, feel, and general function. What I don't understand is not including a cap that encloses the piece with cartridge installed. It's no longer a stealth vape when it's set up to use, and I still have to rely on those dumb easy-to-lose cart plugs to keep it clean in a pocket. Since it was bought specifically for it's stealthiness, I have to say it's nice, but not right for me.
