The Prism Halo Blueberry Pretty Done Beaker Single Stack is a 17.8-inch modular beaker bong in USA-made borosilicate. It has an 18.8mm female joint and comes with a downstem diffuser, a herb slide and the aluminum halo connector that holds the whole thing together. It lists at $174.95 at Smoke Cartel and is in stock.
Prism builds bongs the way other people build camera systems. Every piece in the catalog comes apart into components — mouthpiece, connector, base — and those components are cross-compatible across the line. That is the entire premise of the brand, and it changes what you are buying. A conventional bong is a single object: when the neck cracks, you own a broken bong. A Prism is a base you keep and parts you rotate.
The Halo connector is the mechanism that makes it work. It is an aluminum ring that clamps the mouthpiece section to the beaker base, and it is what you undo when you want to swap a stack, pack the piece flat, or actually clean the thing properly. That last one is underrated. Most tall beakers are cleaned by pouring solvent in and shaking hopefully, because you cannot reach the neck. This one separates into pieces you can get a brush into individually.
Specs
- Type: Bong (beaker, modular)
- Height: 17.8 inches
- Material: Borosilicate glass, made in the USA
- Joint: 18.8mm female
- Downstem: 18.8mm to 14.5mm diffused downstem, included
- Slide: 14.5mm male herb slide, included
- Connector: Aluminum halo connector, included
- Configuration: Single stack
- Base: Wide beaker
- Price: $174.95
Read the specs and notice that nothing is missing from the box. The 18.8mm to 14.5mm diffused downstem and the 14.5mm male slide both ship with it, which is not universal at this price — plenty of beakers in the $150-to-$200 range arrive expecting you to source a downstem. Buying those separately is a $30-to-$60 afterthought that quietly changes the real cost of a piece.
Nearly eighteen inches is a serious desktop bong, and the wide beaker foot is what makes that height sane. Beakers are the stable shape by definition — the mass sits low, the footprint is broad — and at this height that geometry stops being an aesthetic preference and starts being structural. The water volume that comes with a base this wide is the other half of the argument for the shape.
"Single stack" is Prism's own terminology and worth decoding, because it is the product tier, not a percolator description. Prism sells the same base configured as a single or a double stack, where a stack is a mouthpiece section. Single is the shorter, cheaper, more manageable build. Double adds height and another section.
Because the parts are modular, a single stack is not a permanent decision — it is a starting configuration you can build onto later, which is a materially different proposition from buying a fixed piece and outgrowing it.
The Blueberry Pretty Done colorway is the mouthpiece treatment, not the whole piece. Prism runs a range of mouthpiece designs across the same architecture, so the blueberry tone is the part you would swap if you wanted a different look in a year. Compare the Halo White Sky High Single Stack at $149.96 or the Halo Mushroom Modular Bong at $184.93 — same system, different top.
This is for someone buying their last beaker for a while. The modular design only pays off if you keep the piece long enough to break something or want to reconfigure it, and at $174.95 you should be planning on that. It suits people who clean their glass and care that it stays looking new, and people who move house or travel with a piece they do not want to wrap in three towels and hope.
Skip it if you want the cheapest workable beaker. The Smoke Cartel Rounded Beaker with Ice Pinch does the fundamental job at half the price, and if you are not going to use the modularity you are paying for engineering you will never touch.
What the premium actually buys here is a structural idea rather than more glass or a bigger name. USA-made borosilicate, everything included, and a system that survives the single most common way a bong dies — a broken neck. Premium in this category usually means thicker walls and a heavier box. This means the piece is repairable.
Modular glass took a long time to be taken seriously. The prestige in bongs has always run toward the handmade and the unrepeatable — heady work, artist names, one-of-one pieces. A bong designed around interchangeable parts reads as less romantic, and for years it read as less serious too.
Prism made the opposite bet: that the people spending real money on glass are the ones who keep it, clean it, and would rather replace a section than a whole piece. That is a working smoker's logic, and it has aged well.