23mm Quartz Bubble Cap

Description

A carb cap that traps heat and pushes airflow for fuller, more flavorful dabs.

This quartz bubble cap is part of the Roots Glass lineup — built for daily use, fair price.

The cap your banger was waiting for.

A good dab starts with heat, but it finishes with airflow. The 23mm Quartz Bubble Cap seals your flat-top banger and gives you directional control over how air moves through the chamber. Tilt it, rotate it, and push your concentrate exactly where it needs to go — across the hot surface for full, even vaporization instead of letting it puddle up in one spot.

Why a Bubble Cap Matters

Without a carb cap, you’re losing heat and airflow the second you drop your dab. A bubble cap creates a low-pressure environment inside the banger that lowers the boiling point of your concentrate, letting you take smooth, flavorful hits at lower temperatures. That means more terps, less harshness, and way less wasted product.

The bubble shape gives you more control than a flat cap. You can angle the airflow to chase your concentrate around the banger floor, making sure nothing gets left behind. If you’re taking low-temp dabs — and you should be — a bubble cap is what makes the whole thing work.

Why Quartz

This cap is solid quartz, not glass. Quartz handles repeated heating and cooling without cracking or degrading. It won’t discolor over time, it cleans up easy with a torch or a quick soak, and it holds up session after session. The clear construction lets you see exactly what’s happening inside your banger so you can time your hits and adjust your technique.

Compatibility

The 23mm size fits most standard flat-top quartz bangers. If you’re running a flat-top with a 25mm or wider opening, this cap will sit right inside and seal properly. It pairs well with terp pearls and pillars — the directional airflow is what gets them spinning.

Want to get the most out of your dab setup? Check out our dab accessories guide for a breakdown of how caps, pearls, and bangers work together.

Specs

• Size: 23mm
• Material: Clear quartz
• Style: Bubble cap with directional airflow
• Compatible with: Standard flat-top quartz bangers
• Works with: Terp pearls, terp pillars
• Care: Torch clean or soak in cleaning solution

Last Updated: April 30, 2026