This is a high quality plastic quick disconnect made by CM Becker for your gas line.
Barb is 1/4". 1/4" or 5/16" beverage tubing is recommended for gas line.
Note: Sometiems ball lock fittings can be difficult to get fully seated on a Cornelius keg. We recommend using a quick spray of sanitizer solution to act as a lubricant and giving it a few twists while applying the ball lock.
