MAV Glass Female Reducer Adapter
This reducer adapter decreases the diameter of the joint, to convert 14.5mm parts into 18.8mm joints. It changes a 18.8mm female joint into a 14.5mm female joint.
***If you are using a 18.8mm joint piece you are also using a 18.8mm bowl and by reducing to a 14.5mm you will most likely also need a 14.5mm bowl.