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Gravity bongs are a different kind of bong: water and air pressure fill a chamber with smoke, and you take it in one big pull. It is a different kind of session, and plenty of people had good times with a gravity bong back in the day and still do. Ours is clear glass, 10 inches tall, and the 14mm bowl ships with it.
A gravity bong (people also say GB, grav or geeb) uses water and air pressure to pull smoke into a chamber, so you are not pulling it through the piece yourself. You fill the chamber first, then take the whole thing in one go.
Two pieces, one nested inside the other, with water in the outer one. The bowl sits on the inner piece. Raising the inner piece out of the water drops the pressure inside it, which draws air through the lit bowl and fills the chamber with smoke.
Gravity bongs - the 10 inch glass on glass gravity bong, with its 14mm bowl included.
Want to see the regular bongs too? They are all in the bongs category.
A bucket style uses two pieces: a smaller one that sits inside a larger one filled with water. A waterfall style is a single bottle with a small hole in the bottom, and the smoke is drawn in as the water drains out.
Ours uses a 14mm bowl, and the bowl ships with it. If you want a spare or a different style, match the size and the joint gender. Our bong bowl sizes guide covers both, and bowls and downstems has the spares.
Depends what you want from a session. A gravity bong is not a replacement for your daily bong. It is one big pull per fill, with a little routine around the lift and the clear. If you want a different kind of session, it is worth owning. If you would rather sip and keep going, a regular bong fits better.
They do different jobs, so we will not rank them. A regular bong lets you pull at your own pace. A gravity bong is load, lift, clear and done. Pick the one that matches how you like to smoke.
The same way you clean any glass piece. Separate the inner and outer pieces, rinse them warm, then shake 91% isopropyl alcohol with coarse salt inside each one and rinse until clear. Full steps are in our how to clean a bong guide.
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