Water pipes & bongs
by Black Leaf
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The Beaker Ice Bong Rainbow is a borosilicate glass water pipe from Black Leaf that combines ice-cooled filtration with a striking iridescent finish. Standing at 35.6cm with 7mm-thick walls, it sits in that sweet spot — tall enough for proper smoke cooling, compact enough to stash on a shelf without it dominating the room. The beaker base keeps it planted, and the ice notches in the tube let you stack cubes for noticeably smoother, cooler draws.
Most bongs at this size cut corners on glass thickness — you'll find 3mm or 5mm walls that feel fragile the moment you pick them up. The Beaker Ice Bong Rainbow uses 7mm borosilicate, which gives it a reassuring weight in the hand. You can feel the density when you hold it. The iridescent metallic coating shifts between purple, green, and blue depending on the angle and light, decorated with cannabis leaf motifs and the Black Leaf logo. It looks like something you'd display, not hide.
The real selling point is the ice chamber. Drop a few cubes through the mouthpiece and they sit on the notches above the water line, forcing smoke to pass through a cold column before it reaches your lips. According to Healthline, water filtration in a bong "eliminates the dry heat you get from a joint" and produces hits "often described as being cooler, creamy, and smooth." Adding ice on top of that water filtration takes it a step further — the temperature drop is noticeable from the first pull.
It also ships with a blue-and-purple diffuser downstem, which breaks the smoke into smaller bubbles as it enters the water. More bubbles means more surface area, which means more filtration. The carb hole comes with a rubber plug, so you can use it either way — open for quick clearing or plugged if you prefer to control airflow through the bowl alone.
| Spec | Value |
|---|---|
| Brand | Black Leaf |
| Height | 35.6cm |
| Base Diameter | 133mm |
| Stem Diameter | 50mm |
| Joint Size | SG 19 (18.8mm) |
| Wall Thickness | 7mm |
| Material | Borosilicate glass |
| Ice Notches | Yes |
| Carb Hole | Yes (with rubber plug) |
| Diffuser | Blue and purple downstem diffuser included |
| SKU | HS1678 |
We've had this one on the shop floor for a while now, and the iridescent finish genuinely catches people's eyes — customers pick it up just to look at it. The 133mm beaker base is wide enough that you'd have to properly knock it to tip it over, which matters more than most people think until they've lost a bong to a clumsy elbow.
The honest limitation? That iridescent coating shows fingerprints and water spots more than plain clear glass. Keep a microfibre cloth handy if you want it looking its best. It's cosmetic, not functional — the glass underneath is thick and solid. Also, if you're used to massive 45cm+ tubes, this one at 35.6cm will feel more personal-sized. We'd say that's a feature, not a bug — less water to change, less ice to fill, easier to clean.
Compared to a straight tube bong at the same price point, the beaker shape gives you a larger water reservoir. That means more filtration and a more stable centre of gravity. If you want something even smoother, you'd be looking at a percolator bong — but those are harder to clean and cost more. For the money, this is the best beaker ice bong for daily use without the maintenance headache of multi-chamber setups.
Complete your setup with a proper grinder — pre-ground herb burns more evenly in a bowl, which means better flavour and less waste. A set of pipe screens for the 18.8mm bowl keeps ash out of the water and saves you cleaning time. And if you want to keep this glass sparkling, grab a bottle of dedicated bong cleaner — it cuts through resin faster than any home remedy we've tried.
Smoking through a dry pipe or a joint means hot, harsh smoke hitting your throat directly. It works, but after a few sessions your throat knows about it. Water filtration helps — it cools the smoke and catches some of the heavier particulate. But water alone only drops the temperature so much.
Ice changes the equation. When smoke passes through a column of ice cubes stacked on the notches, the temperature drops significantly before it reaches your mouth. The result is a pull that feels almost cold, and you taste more of the herb's actual flavour profile instead of just heat. We've had customers switch from joints to an ice bong and immediately notice flavours they'd been burning right past.
The beaker design specifically helps here because the wider base holds more water — roughly 30-40% more than a straight tube of the same height. More water contact, more cooling, more filtration. The 7mm wall thickness also means the glass itself stays cooler to the touch, even after repeated use. It's a small detail, but it adds up over a session.
A clean bong is a better bong — stale water and resin buildup kill flavour faster than anything else. Rinse the beaker and downstem with hot water after each session. Once a week, pour in a dedicated glass cleaner or a mix of coarse salt and isopropyl alcohol, cover the openings, and shake. The 133mm base opening is wide enough to get a brush inside, which is another advantage of the beaker shape over narrower designs. The diffuser downstem pulls out for separate cleaning — don't skip it, because those small slits clog first.
Ice cubes stacked on the notches cool the smoke before it reaches your mouth. According to Healthline, water filtration already produces hits described as "cooler, creamy, and smooth" compared to dry methods — ice takes that cooling further, making each draw noticeably less harsh on the throat.
Three to five standard ice cubes is the sweet spot. You want enough to cool the smoke but not so many that airflow gets restricted. If you can't draw comfortably, remove a cube.
Any bowl or accessory with an SG 19 (18.8mm) male joint fits the Beaker Ice Bong Rainbow. This is the most common joint size, so replacements and upgrades are easy to find.
Beaker bongs hold more water for the same height, which means more filtration and cooling. They're also more stable thanks to the wider base. Straight tubes clear faster because there's less volume to push through. It comes down to preference — smoother hits or snappier clears.
After every session. Fresh water tastes better and filters more effectively. Stale water breeds bacteria within 24 hours and makes everything taste like a puddle. It takes 30 seconds — just do it.
You can. Warm water produces more steam, which some people find gentler on the throat. But you lose the cooling effect that makes ice bongs distinctive. Try both and see which you prefer — the Beaker Ice Bong Rainbow works either way.
7mm is on the thicker end for bongs — most budget pieces use 3-5mm glass. You can feel the difference in weight and sturdiness. It won't survive a drop onto tiles, but it handles normal use, cleaning, and the occasional table bump without drama.
Last updated: April 2026
