The GRAV® Large Gravitron® is the largest incarnation of GRAV's namesake and flagship product. It's the world's first all glass gravity smoking system, and is just as much of a crowd pleaser today as it was when it was invented in 2004. For the best experience when operating the gravitron, fill the outer chamber with about 10" of water, or until the water level is just below the decal. The bottle should rest inside the water as the included 12mm bowl is lit. Slowly pull the bottle upward and watch it fill with smoke. Finally remove the bowl and inhale through the mouthpiece of the bottle as you push the bottle back down into the water. This creates a pressurized flow of smoke that yields fast and strong hits. The Gravitron's function is impressive to watch, but you'll be even more impressed once you try it for yourself. After a few hits of pressurized smoke zooming straight into your lungs, you'll understand why we love the Gravitron so much.

The GRAV® Medium Gravitron® is the smaller edition of GRAV's namesake and flagship product, and it's still as much fun and as hard-hitting as it was back in 2004 when it was invented. To use the Medium Gravitron, start by filling the outer base with about 8" of water, which should hit just below the decal. Then place the bottle into the base, and load the included 12mm bowl. Place the bowl in the mouthpiece of the bottle, and as you light it slowly pull the bottle upward. The bottle will fill with smoke. When you're ready to hit it, remove the bowl and inhale through the mouthpiece of the bottle as you push it back down into the water. This will create a pressurized flow of smoke that will give you a huge hit in record time. There's a reason the world's first all-glass gravity smoking system is still popular and iconic to this day, and that's that it does the job of delivering big, pressurized hits extremely well.

The small GRAV® Upright Bubbler is 6" tall and made on 32mm tubing. Its fission downstem diffuses smoke through water and is fixed inside the bubbler to prevent damage. Its angled mouthpiece acts as a splashguard, and its lip wrap is tooled for comfort. No accessories are necessary for using this bubbler, and it works best with approximately 1.5" of water.

The mini GRAV® Round-Based Water Pipe is 6" tall and made on 25mm tubing. Its fission downstem diffuses smoke through water and is fixed inside the pipe to prevent damage.The round-based water pipe comes ready to use with a 10mm GRAV® Cup Bowl and functions best with approximately 1" of water.

The 14mm GRAV® Chiller Attachment is 5" tall and filled with glycerin that can reach sub-zero temperatures without freezing. Its central coil maximizes the surface area to which airflow is exposed, cooling smoke or vapor before it enters a water pipe. The chiller features 14mm male and female joints at either end, making it compatible with any 14mm water pipe and accessory.

The mini GRAV® Beaker Water Pipe is 6" tall and made on 25mm tubing. Its fission downstem diffuses smoke through water and is fixed inside the pipe to prevent damage.The beaker comes ready to use with a 10mm GRAV® Cup Bowl and functions best with approximately 1.25" of water.

The mini Helix™ Hand Pipe is 6" long and made on 25mm tubing. The familiar spoon head is fused to a Venturi chamber mouthpiece, featuring three air intake holes that cool and spin smoke. Two feet stabilize the piece between uses. The Helix™ design both filters smoke and conserves plant matter. No accessories or water are necessary for using this hand pipe.

The GRAV Zip-Up Hoodie features a durable zipper front and embroidered iconic GRAV logo on the chest. Made with extra thick 100% cotton, this heavy weight hoodie is sure to keep you warm and cozy.

• Made with extra thick 350g, 100% cotton to keep you warm and cozy.
• Features zipper, hand pockets and adjustable laces on the hood for extra comfort.
• Custom embroidered GRAV® logo on chest.
• Tapered wrists to keep the heat locked in.

The small GRAV® Upright Bubbler is 6" tall and made on 32mm tubing with black accents. Its fission downstem diffuses smoke through water and is fixed inside the bubbler to prevent damage. Its angled mouthpiece acts as a splashguard, and its lip wrap is tooled for comfort. No accessories are necessary for using this bubbler, and it works best with approximately 1.5" of water.

Get a grip (on the new GRAV Wedge Bubbler.) Small and portable, this piece has an ergonomic design that makes it easy to hold and hard to drop. Engineered to need minimal water, the Wedge provides a smooth, clean pull in a tidy little package.

• Stands 5" tall
• 14mm female joint
• Comes with a 14mm cup bowl
• Features a fixed fission downstem