What's the difference between a dab rig and a bong?
Posted by Jack Daniel (Edited by Jay Dreadhead) on 4th Dec 2016
If you're shopping for a new piece and wondering, "What's the difference between a dab rig and a glass bong?", you're not alone. At first glance, the two can look nearly identical. Both use water filtration, both are made from borosilicate glass, and both can feature intricate percolators and artistic designs.
However, dab rigs and bongs are built for two completely different purposes.
A glass bong is designed for smoking cannabis flower, while a dab rig is designed for vaporizing cannabis concentrates such as wax, rosin, shatter, or live resin.
While it's technically possible to use either piece for both flower and concentrates with the proper accessories, each is optimized for a specific experience.
Quick Answer: Dab Rig vs Bong
Dab Rig
- Designed for concentrates
- Smaller size
- Less diffusion
- Focuses on flavor preservation
- Uses a quartz banger or dab nail
Glass Bong
- Designed for flower
- Usually larger
- More diffusion
- Focuses on smoke cooling
- Uses a flower bowl
The biggest differences come down to size, airflow, diffusion, and intended use.

Why Are Dab Rigs Usually Smaller?
When smoking flower through a bong, combustion creates hot smoke. Larger chambers and additional percolators help cool and smooth the smoke before it reaches your lungs.
Dab rigs don't need as much cooling because concentrates are vaporized rather than burned. Since vapor is already cooler than smoke, most rigs are designed with:
- Smaller chambers
- Less air volume
- Simpler percolation
- Faster airflow
This allows the vapor to reach your lungs quickly while preserving flavor and potency.
Why Are Glass Bongs Usually Larger?
One of the most noticeable differences between a dab rig and a bong is overall size. While there are certainly exceptions, most glass bongs are significantly larger than dab rigs.
The primary reason is heat.
When cannabis flower is burned, it produces hot smoke that can be harsh on the throat and lungs. A larger bong provides more space for that smoke to travel before being inhaled. As the smoke moves through the water chamber and percolators, it has more time to cool down.
Larger bongs also allow for:
- Increased smoke cooling
- More water filtration
- Additional percolators and diffusion
- Bigger, smoother hits
Many flower smokers also enjoy taking larger hits than concentrate users. A larger bong chamber can hold more smoke before clearing, creating the powerful pulls that many bong enthusiasts prefer.
Additionally, larger glass pieces give artists and manufacturers more room to incorporate features like multiple percolators, ice pinches, ash catchers, and intricate glasswork. As a result, many modern bongs are designed not only for function but also for visual appeal and customization.
Why Do Dab Rigs Have Less Diffusion?
Concentrate enthusiasts typically want the opposite.
Too much diffusion can cause vapor to condense inside the rig before it reaches the user. This can reduce flavor and leave more reclaim behind.
Because of this, many modern dab rigs use:
- Simple perc designs (3-hole perc is the most common)
- Minimal water volume
The result is a more flavorful and efficient dab.
Why Do Bongs Have More Diffusion?
Many glass bongs feature advanced percolators, tree arms, honeycombs, showerheads, matrix perc systems, and removable downstems.
The purpose of all this diffusion is simple: create smaller bubbles that cool harsh smoke from combusted flower.
More diffusion generally means:
- Smoother hits
- Cooler smoke
- Larger water filtration
For flower smokers, these are desirable qualities.
Can You Use a Bong as a Dab Rig?
Yes.
If your bong has a compatible joint size, you can remove the flower bowl and install a quartz banger.
Many people start dabbing this way before purchasing a dedicated rig.
However, larger bongs often have too much air volume and diffusion for concentrates, which can mute flavor compared to a purpose-built dab rig.
Can You Smoke Flower Out of a Dab Rig?
Also yes.
Simply replace the quartz banger with a flower bowl.
That said, many dab rigs are intentionally small. While they work for flower, they may not cool smoke as effectively as a traditional bong and will need to be cleaned very often as they get dirty quickly.
Should You Buy a Dab Rig or a Bong?
Choose a glass bong if:
- You primarily smoke flower
- You prefer cooler, smoother smoke
- You enjoy larger hits
- You want maximum diffusion
Choose a dab rig if:
- You primarily use concentrates
- Flavor is important to you
- You prefer low-temp dabs
- You want the most efficient concentrate experience
Final Thoughts
While dab rigs and glass bongs may look similar, they're engineered for entirely different forms of cannabis consumption. Bongs are designed to cool and filter smoke from flower, while dab rigs are designed to preserve the flavor and potency of concentrates.
If you mainly smoke flower, a quality bong is usually the best choice. If concentrates are your preference, a dedicated dab rig will provide better flavor, better efficiency, and a more enjoyable overall experience.