This Hudson RCI Elbow Adapter has a Standard 22mm I.D. connector on vertical axis and a 22mm O.D. connection on the horizontal axis.
This Package Includes: 50 Elbow Adapters
The U/Adapt-It Straight Connectors without base, feature a 22 mm outer diameter at one end, and 22 mm inner diameter at the other end with open oxygen monitor stem.
This U/Adapt-It Straight...
This Aerosol Tee Connector's horizontal axis has a 22mm O.D. connection. It's vertical port is 15mm I.D. / 22mm O.D. connection.
TheAerosol Tee Connectors