GRAV Quartz Hourglass Banger – 10mm 90°

The GRAV Quartz Hourglass Banger 10mm 90 is a standalone banger and does not include a carb cap or terp pearls. If you want a complete set with a 20mm quartz marble and two 6mm terp pearls, the GRAV Quartz Hourglass Banger Set 10mm 90 is available separately. The standalone banger is a good choice for those who already own compatible terp accessories and want to add the hourglass profile to their collection.

This banger has a 10mm male joint at a 90-degree angle, designed for dab rigs with a 10mm female 90-degree joint. The 10mm size is standard on compact and mini rigs. Verify both the joint size and the angle on your rig before purchasing. The 90-degree configuration positions the bucket horizontally, which is the standard orientation for straight-base water pipes and most common dab rig styles.

The hourglass shape features an inward curvature at the center of the bucket that creates a physical narrowing between the upper and lower chambers. When combined with the two laser-cut directional air intakes, this geometry channels incoming airflow in a rotational pattern around the lower bucket interior. The spinning effect keeps terp pearls or other small inserts in circular motion, redistributing heat and concentrate for more complete vaporization. The design also works well for cold start dabs where maintaining even heat across the quartz surface is important.

A 20mm quartz marble or a directional bubble cap that seats properly over the hourglass opening is recommended. The cap should create a reliable seal over the top of the banger to direct all incoming airflow through the two directional intakes, maximizing the spinning effect in the lower bucket. A cap that is too large or does not seal adequately will reduce the rotational airflow and decrease vaporization efficiency. The GRAV Quartz Hourglass Banger Set 10mm 90 includes a matched 20mm marble if you need a compatible cap.

Yes, the GRAV Hourglass Banger is particularly well suited for cold start dabbing. The inward curvature of the hourglass bucket helps retain concentrate in the lower chamber as it heats from below, and the thick gathered flat base heats evenly from torch application underneath. Cold start dabbing with this banger typically produces flavorful results because the quartz heats slowly, allowing concentrates to vaporize at lower, terpene-preserving temperatures before the bucket reaches higher heat levels.

Chazzing is a form of heat damage that occurs when a banger is overheated or not cleaned promptly after each session, leaving burnt residue baked onto the quartz. To avoid chazzing, allow the banger to cool to a moderate temperature before adding concentrate rather than dabbing at extremely high heat, and swab the interior immediately after each session with an isopropyl-soaked cotton swab while still slightly warm. Keeping the banger clean extends the life of the quartz and maintains the neutral flavor that makes quartz the preferred banger material.