2″ Clear Spinner Carb Cap

That's exactly why our community of medical patients and daily dabbers here at Oil Slick Pad reached for the spinner design.

We built this cap with one goal: give you the control and visibility you need for the best taste and efficiency every single time you dab.

Why It Stands Out

The clear borosilicate glass construction means you're watching the action happen. No mystery about whether your pearls are spinning or your concentrate is vaporizing evenly.

The directional airflow slots are engineered to keep terp pearls moving without creating dead zones inside the banger.

At just 2 inches, this cap fits the vast majority of standard 45-degree bangers on the market. No adapters, no compatibility headaches. Just a universal tool that actually works.

The transparent glass lets heat travel evenly, which is essential for getting those lower-temperature dabs that preserve terpenes.

Specifications

What You're Getting

• Clear visibility into your banger so you can see pearls spinning and concentrate vaporizing
• Directional airflow that keeps terp pearls moving for even heat distribution
• Universal 45-degree fit compatible with most standard bangers in the market
• Durable 5mm borosilicate glass that resists thermal shock and cracking
• Precision temperature control through real-time visual feedback on your dabs
• Improved terpene retention by enabling lower-temperature dabs
• Airtight seal that maximizes flavor and efficiency
• Portable and easy to clean between sessions
• A reliable tool built to last through hundreds of sessions

How to Use It

Heat your banger to your preferred temperature (we recommend 350-400F for terp preservation). Once your banger is hot, place this cap on top and watch the action.

Start with a gentle tilt to control airflow while watching your concentrate bubble and vaporize.

After your hit, remove the cap and set it on a clean surface to cool. If you're chain-dabbing, rest it on a pad between hits to avoid contacting your work surface.

Pro Tip: Use a terp pearl slightly larger than your banger's interior to get the most visible, consistent rotation. Too small and it moves erratically; too large and it gets stuck. The sweet spot usually costs a couple extra dollars but makes a huge difference in your experience.

Who It's For

If you're serious about flavor and efficiency, this is your cap. Medical patients who need consistent doses will appreciate the visual feedback and repeatability.

Newcomers often ask us whether they need a carb cap at all. The answer is yes, especially if you care about taste and not wasting product.

Anyone who gets frustrated with caps that either block all airflow or create hot spots in the banger will immediately feel the difference here.

Frequently Asked Questions

Here are the most common questions we hear from customers about spinner carb caps.

Will this cap fit my 25mm banger?

The 2-inch diameter accommodates most standard bangers with a 45-degree male joint. If your banger has a different angle or size, measure the opening first to confirm fit. Most Oil Slick customers use 25-30mm bangers, and this cap works on all of them.

Do I need terp pearls to use this cap?

You can use it without pearls, but you'll miss out on the rotation and even heating that makes this design special. One terp pearl (around the size of a pea) gives you the ideal spinning motion and dramatically improves vapor production and flavor.

Is borosilicate glass stronger than regular glass?

Yes, borosilicate glass has a much lower coefficient of thermal expansion. This means it resists cracking when exposed to temperature changes like heating and cooling between hits. It's the same glass used in laboratory equipment and high-end rigs. If you're not sure which option fits your setup, our.

How do I know if my dab is ready to hit?

Watch your concentrate inside the banger. Once it begins bubbling and moving from the airflow, that's your signal. With the clear glass, you see exactly when vaporization starts. Most dabbers wait 2-5 seconds after heating, depending on their torch and banger size.

Can I use this on a 90-degree banger?

This cap is specifically designed for 45-degree joints. A 90-degree banger requires a different cap style. Check your banger's joint angle before ordering to ensure proper fit and function. If you're not sure which option fits your setup, our team is around to help and we ship every.

Will the glass become cloudy over time?

Borosilicate glass stays clear longer than soft glass because it resists scratching and buildup. Regular cleaning keeps it crystal clear. Some residue buildup is normal, but it washes off with isopropyl alcohol. If you're not sure which option fits your setup, our team is around to help and.

What size terp pearl should I use?

A single terp pearl about the size of a pea (roughly 6-8mm) works best in most 25-30mm bangers. It should roll freely inside without getting stuck, but be large enough to create visible rotation. Start with one pearl and adjust upward if you want faster spinning.

Cleaning & Maintenance

After each session, run hot water over your cap and gently wipe the exterior with a soft cloth.

Never use harsh scrubbing tools or abrasive sponges on borosilicate glass. A soft cotton cloth or specialized glass cleaning brush is all you need.

Store your cap in a safe, stable location where it won't roll off a table or get knocked around.

Warning: Never place a hot cap directly on a surface that can't handle heat. Always set a cooling cap on a glass mat, ceramic tile, or stainless steel surface. Borosilicate glass is heat-resistant, but contact with cold surfaces immediately after heating can eventually weaken the structure.

Complete Your Setup

Pair your spinner cap with a quality terp pearl to maximize rotation and flavor. Check out our quartz bangers if you're looking to upgrade or expand your rig's heat retention. Store your concentrate safely with our airtight storage containers. Add precision to your heating with a dab tool collection. Keep your entire setup organized on a rolling tray.