Carb Caps & Dab Caps
Carb Caps and Dab Caps for Low-Temp Concentrate Sessions
A quality carb cap is one of the most impactful upgrades you can make to your dab setup. Carb caps work by restricting airflow over your heated quartz banger, creating a pressurized environment that allows concentrates to vaporize at much lower temperatures. Low-temp dabs preserve the full terpene profile of your concentrates, delivering richer flavor and smoother vapor compared to high-temp rips that burn off the best parts.
AFM carries a full range of carb cap styles to match every banger and every dabbing preference. Directional carb caps let you control airflow with precision, steering vapor around the banger walls for complete coverage. Bubble carb caps create a spinning vortex that keeps concentrates moving and vaporizing evenly. Spinner carb caps and turbo caps pair best with terp pearls, using airflow to spin the pearls around the banger floor and eliminate cold spots. All AFM carb caps are crafted from borosilicate glass for clean, inert vapor and easy heat resistance.
Pairing the right carb cap with your banger setup makes a noticeable difference in how efficiently you use your concentrates and how good each dab actually tastes. Whether you're running a flat-top, a terp slurper, or a beveled edge banger, there's a cap in this collection built for it. If you're just getting into concentrates, adding a carb cap to your dab rig setup is one of the easiest and cheapest ways to immediately improve your sessions.
Why Upgrade Your Carb Cap
- Enables low-temperature dabs that preserve flavor and potency
- Directional, bubble, and spinner styles for different bangers and preferences
- Pairs with terp pearls for full banger coverage and zero waste
- Borosilicate glass construction for clean, heat-resistant performance
- Compatible with 10mm, 14mm, and 18mm quartz bangers
Browse the full carb cap collection below and find the right cap for your rig. Looking to build out your full concentrate setup? Check out our recycler dab rigs, dabber tools, and quartz bangers and nails for everything you need in one place.
Related AFM Glass Collections
A cap only works as well as the banger underneath it, so match yours with a fresh quartz banger for clean, even vaporization. Add a dabber tool to load concentrates precisely without overfilling. And if you're building a complete setup from scratch, browse our full lineup of dab rigs to find the right base for your station.
Which Dab Cap Fits Your Banger?
Three quick checks and you will know which dab cap to add to your cart.
- Measure the banger, not the joint. A cap seats on the opening of the banger bucket, so the inner diameter of that opening is the number that matters. Standard flat tops usually take a 25mm to 30mm cap.
- Look at the banger style. Flat tops are the most forgiving. Terp slurpers and beveled edge bangers are fussier about fit, so check the diameter listed on the cap against your banger before ordering.
- Pick the style that suits how you dab. Directional for steering airflow by hand, bubble for a hands off vortex, spinner or turbo if you run terp pearls.
Still short a piece? A glass adapter lets you run a banger in a rig with a different joint size. Everything ships from Los Angeles, free on US orders over $75 and a flat $7.50 under that.
Carb Cap vs Dab Cap: What Is the Difference?
Nothing, honestly. Carb cap and dab cap are two names for the same piece of glass. Both describe the cap that covers your heated banger and restricts airflow so concentrates vaporize low and slow instead of scorching off at full heat. Some people say dab cap because it is the cap you use for dabs, others say carb cap because it works like a carb on a pipe. You will see both terms used for the same product across the industry.
The words worth paying attention to are the style names: directional, bubble, spinner, and turbo. Those describe how air actually moves inside the banger, and that is what changes your flavor and your yield. A dab cap that suits your banger and your habits beats an expensive one that does not fit.
Carb Cap FAQs
What does a carb cap actually do?
A carb cap restricts airflow over your heated banger, creating a small pressure drop that lets concentrates vaporize at much lower temperatures. Low-temp dabs preserve the full terpene profile, which means richer flavor and smoother vapor compared to high-temp rips that burn off the best parts.
Directional, bubble, or spinner carb cap: what's the difference?
Directional caps let you steer airflow around the banger walls so every drop of oil vaporizes. Bubble caps create a spinning vortex that keeps concentrates moving and burning evenly. Spinner caps pair with terp pearls and use airflow to spin the pearls around the banger floor, eliminating cold spots. Most dabbers run one of each.
What size carb cap do I need for my banger?
Match the cap to the inner diameter of your quartz banger, not the joint size. AFM carb caps come in sizes that fit 10mm, 14mm, and 18mm bangers. Standard flat-top bangers usually take a 25mm to 30mm cap. Check the product spec on each cap and on your banger before buying.
How do I use a carb cap?
Heat your banger, let it cool 30 to 45 seconds (longer for thicker quartz), drop in your concentrate, then place the carb cap on top. Spin a directional cap as you inhale to move the vapor around the banger walls. Keep the cap on until you've pulled all the vapor.
Glass vs quartz carb cap: which is better?
Glass carb caps are clear and let you see what's happening inside the banger, which makes them the most popular choice. Quartz caps handle higher temperatures and pair best with quartz bangers for thermal consistency. Both work. Pick based on whether you want visibility (glass) or maximum heat tolerance (quartz).
What dab cap works best with a terp slurper?
Bubble style caps are the usual pick, since the rounded body seats into the opening and lets you steer airflow without lifting the cap off. Slurper openings vary more than flat tops do, so check the diameter listed on the cap against your slurper before you order.
Can one dab cap work on more than one banger?
Yes, as long as the openings are close in size. A bubble cap with a rounded body seats on a range of flat top bangers, while a directional cap with a flat underside needs a closer match. If you run bangers in 10mm, 14mm, and 18mm joints, measure the bucket opening on each one rather than assuming the joint size tells you the answer.
How much do AFM carb caps cost, and what does shipping run?
Carb caps in this collection start at $5, and terp pearl and marble sets start at $4.99. US shipping is free on orders over $75 and a flat $7.50 under that, and everything ships from Los Angeles.
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