10mm to 14mm Glass Adapter Insert

10mm to 14mm Glass Adapter Insert

Step a 10mm joint up to 14mm.

• Joint: 10mm Male to 14mm Female

This 10mm to 14mm glass adapter insert is a clear 10mm male to 14mm female adapter that makes the joint on your piece one size bigger. The 10mm male end seats into a 10mm female joint, and the 14mm female opening on the other side takes 14mm male bowls, bangers, and downstems.

Reach for a 10mm to 14mm adapter when the bowl or banger you want is bigger than your piece’s joint: a 10mm joint and a 14mm accessory. 14mm is the standard size across most bongs and rigs, so this opens up the full range of 14mm bowls and downstems. Not sure which size you need? Our bong bowl size guide breaks down 10mm, 14mm, and 18mm.

Check your joint before you order: this adapter needs a 10mm female joint on your piece.

✅ Why Choose This Glass Adapter Insert?

• Steps a 10mm joint up to 14mm
• 10mm male end, 14mm female opening
• Opens your piece to standard 14mm bowls, bangers, and downstems
• Single piece of clear glass, nothing to assemble

The simple way to make a 10mm joint fit the 14mm gear you already own.

Frequently Asked Questions

Which end goes where? The 10mm male end goes into a 10mm female joint on your piece. The 14mm female opening on the other side takes 14mm male accessories like bowls, bangers, and downstems.

Will a 14mm bowl fit after this adapter? Yes — once the adapter is seated, the opening is a 14mm female joint, so any 14mm male bowl or banger fits.

Does it work in reverse, 14mm down to 10mm? No — it makes your joint bigger, never smaller. To go the other way you need a step-down adapter; you’ll find them in our glass adapters category.

Last Updated: October 6, 2026