How to Choose a Carb Cap for Dabbing

A carb cap covers your banger during a dab, and while it looks like a small accessory, it changes the airflow and heat retention enough to noticeably affect flavor and vapor production. Here’s what to look for.

What a Carb Cap Does

Capping the banger restricts airflow, which traps heat and lowers pressure inside the banger, letting concentrate vaporize more fully at a lower temperature than an uncapped dab. This generally means better flavor and less wasted concentrate.

Directional Airflow Caps

A directional cap like the Directional Airflow Carb Cap by SWRV Glass has a small offset hole that lets you aim incoming air at a specific part of the banger, which is especially useful with terp pearls since it keeps them spinning consistently.

Bubble Caps

A bubble-style cap like the Spiral Glass Bubble Carb Cap (Random Color) covers the banger opening more completely, maximizing heat retention and vapor production at the cost of the airflow control a directional cap gives you.

Universal vs. Fitted Caps

Universal caps like the Ceramic Universal Carb Cap & Dabber for 14/18mm are sized to fit most standard 14mm/18mm bangers, while some caps are built to match a specific banger shape exactly — check your banger’s size before buying if you’re going with a fitted style.

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