This low profile Glass Adapter from INHALCO has an 18mm male exterior that allows you to turn a 18mm piece into a 14mm. That means you can use a
14mm banger
into a 18mm rig.- Borosilicate Glass
- Convert from 18mm Female to 14mm Female
- Convert from 14mm Male to 18mm Male
- Inside Slide Joint: 14mm Female
- Outside Ground Joint: 18mm Male