2-Pack 18mm Male to 14mm Female Glass Adapter Reducing Joint

Description

Set of 2 18mm Male to 14mm Female Glass Adapter Reducing Joint (2-pack). Condition is "New". Shipped with USPS First Class.
Do you have a 14mm accessory that you are wanting to use, but your ground-joint is 18mm?
This will reduce the 18mm ground-joint to 14mm so you will be able to connect your 14mm accessory.