The Straight Adapter from Grav (formerly Grav Labs) is made with high quality glass and is designed to convert your 14mm female glass on glass joint to a 18mm female connection or any 18mm male glass on glass joint to a 14mm male connection.
- Borosilicate Glass
- Grav Decal
- Converts from 14mm Female to 18mm Female
- Converts from 18mm Male to 14mm Male
- Joint: 14mm Male/18mm Female