Dab rigs & tools
by Groove
The Micro Tube Glass Rig from Groove is a compact borosilicate dab rig that stands just 13.5cm tall and delivers filtered, flavour-forward vapour through a fixed downstem. Built for concentrate fans who want a proper piece without the bulk, this micro rig fits in a rucksack pocket and hits well above its weight class.
| Spec | Value |
|---|---|
| Brand | Groove |
| Height | 13.5cm |
| Material | Borosilicate glass |
| Downstem | Fixed (built-in) |
| Mouthpiece | Flared |
| Compatible with | Concentrates and dry flower (with appropriate banger or bowl) |
| SKU | HS2832 |
Complete your dab setup — pair the Micro Tube with a quartz banger for clean-tasting concentrate hits, or grab a dab tool set so you're not fumbling with sticky extracts and improvised paperclips. A small silicone dab mat underneath keeps everything tidy and protects your table from heat marks.
Most compact rigs make compromises you can feel on the first draw. Either the vapour path is so short it scorches your throat, or the glass is so thin you're afraid to set it down on a hard surface. The Groove Micro Tube Glass Rig avoids both problems. The fixed downstem sits submerged in a small water chamber, and that 13.5cm of travel between the nail and your lips is enough to cool and filter vapour noticeably. It's not the same as pulling through a 30cm beaker — nobody's claiming that — but for a piece this size, the smoothness genuinely surprises.
Borosilicate glass is the same material used in laboratory beakers and high-end cookware. It handles rapid temperature changes without cracking, which matters when you're torching a banger centimetres away from the water chamber. The walls on this piece feel solid in the hand — there's a reassuring weight to it despite the small footprint. Pick it up and you'll notice it doesn't feel like a novelty item. It feels like a proper rig that happens to be small.
The honest limitation: the water volume is tiny. You'll need to change it frequently — every session or two — because a small chamber gets cloudy fast. That's the trade-off for portability. On the upside, cleaning takes about 90 seconds with some isopropyl alcohol and a rinse. No awkward percolator chambers to scrub, no removable downstem to lose. The fixed downstem means fewer parts, fewer breakage points, and less fiddling around.
We've had a few of these behind the counter for testing and the thing that stands out is how well the flared mouthpiece seals. On a lot of budget micro rigs, the mouthpiece is just a cut tube — your lips slip, you lose suction, and half the vapour escapes sideways. The flare on this one gives your lips something to press against properly. Small detail, big difference in practice.
Compared to a silicone travel rig, the Groove Micro Tube wins on taste every time. Silicone is nearly indestructible, sure, but glass simply doesn't impart any flavour of its own. If you're spending money on quality concentrates or carefully ground flower, you want to actually taste what you're smoking — not a faint rubbery undertone. If durability is your absolute top priority and you're genuinely worried about dropping it off a balcony, a silicone piece might suit you better. But for flavour and a proper smoking experience at this size? Borosilicate glass is the way to go.
At 13.5cm, this rig is shorter than most water bottles. It tucks into a padded pouch or even a thick sock for transport. We'd pick this over a larger rig for any situation where space matters — small flats, travel bags, or just keeping your coffee table clear.
No, the rig ships as the glass piece only. You'll need to pick up a compatible banger for concentrates or a bowl for dry flower separately. Check the joint size before buying — match it to the rig's joint and you're sorted.
Pour out the water, add isopropyl alcohol (90% or higher) and a pinch of coarse salt, then shake firmly for 30–60 seconds. Rinse thoroughly with warm water. The fixed downstem means no disassembly — just shake and rinse. Do this after every few sessions to keep flavour clean.
Smaller than a full-sized rig, yes, but the fixed downstem and water filtration still cool the vapour noticeably. Low-temperature dabs through this piece are genuinely smooth. You won't get the same cooling as a 30cm beaker with a tree percolator, but for the size, it performs well above expectations.
Yes. Fit a glass bowl piece for dry flower or a quartz banger for concentrates — the rig works with both. Most people buy it for dabs, but it doubles as a compact water pipe for flower without any issues.
Borosilicate is tougher than regular soda-lime glass and handles heat stress without cracking, but it's still glass. A drop onto tiles or concrete can absolutely break it. Treat it like you'd treat a decent wine glass — don't chuck it in a bag unprotected. A padded case or silicone sleeve helps if you're travelling with it.
Every session, ideally. The water chamber on a micro rig holds very little — maybe 30–50ml — so it gets dirty quickly. Fresh water each time keeps the flavour clean and prevents residue buildup on the glass walls.
Last updated: April 2026
