18.8 mm Male to 18.8 mm Female Glass Adapter

Make your glass work the way you want. This simple 18.8 mm male to 18.8 mm female adapter lets you pair pieces that normally wouldn’t connect—so you can use that favorite bowl, banger, ash catcher, or recycler without replacing the rest of your setup.

• Size: 18.8 mm (aka 19 mm) male to 18.8 mm female
• Material: Clear glass with frosted ground joints for a snug seal
• Purpose: Adapts male accessories to female joints of the same size
• Profile: Compact straight-through design with a center grip ring
• Fit Notes: Only for 18 mm joints; not compatible with 14 mm or 10 mm fittings

Adapters are the unsung heroes of a smooth session. This one adds flexibility to your collection so you can swap between herb and concentrate gear, test new attachments, or keep a backup ready for friends—without compromising airflow.

• Fully seat both joint surfaces before use to protect the ground glass.
• Let hot glass cool before removing or rinsing.
• Clean with a glass-safe cleaner, then rinse with warm water for a crystal-clear fit.

Drop this adapter in your kit and unlock more combos from the glass you already own.