GRAV Quartz Hourglass Banger Set – 14mm 45°

This set includes the GRAV Quartz Hourglass Banger with a 14mm 45-degree male joint, one 20mm quartz marble, and two 6mm terp pearls. The marble functions as a directional carb cap that seals the top of the banger and helps guide airflow downward to spin the terp pearls. The two terp pearls sit in the lower bucket and move continuously during inhalation to distribute heat and concentrate evenly.

This banger is designed for dab rigs and water pipes with a 14mm female 45-degree joint. Rigs with angled downstems commonly use this configuration. Always verify both the joint size and angle on your water pipe before purchasing, as using a 90-degree banger on a 45-degree rig will result in the bucket sitting at an improper angle, which can cause concentrate to pool unevenly and reduce vapor efficiency.

The inward curvature of the hourglass silhouette creates a narrowing that channels airflow from the upper chamber through the restriction point and into the lower bucket. Combined with two laser-cut directional air intakes, this geometry generates a spinning tornado effect that keeps terp pearls in constant motion. The result is more even heat distribution across the concentrate and greater surface contact with the quartz walls, improving both vapor output and flavor quality compared to a standard flat-top bucket.

Yes, the GRAV Hourglass Banger is well suited to cold start dabbing. Load your concentrate directly into the cold bucket along with the terp pearls, place the 20mm marble on top, and then apply heat from underneath with a torch. This method preserves terpenes by starting at a lower temperature and allows you to watch the concentrate as it begins to vaporize. The thick gathered flat base helps retain heat evenly during the cold start process.

The included 20mm quartz marble is designed to work with the hourglass opening of this banger. It functions as a bubble cap that seals the top and creates the airflow restriction needed to spin the terp pearls effectively. If you prefer a different cap style, a directional bubble cap with an approximately 20mm base that seats properly over the banger opening will also work. Avoid caps that are too large or too loose, as a proper seal is essential for the whirling effect.

After every session, swab the interior of the bucket with a cotton swab dipped in isopropyl alcohol while the banger is still slightly warm to remove residue before it hardens. The hourglass shape has a narrowing at the mid-section where residue can collect, so a long-handled swab or cotton-tipped cleaning tool helps reach all areas. Regularly cleaning the banger prevents dark discoloration and preserves the flavor neutrality of the quartz surface over many sessions.