Glass Reducing Connecting Adapter from 14/20 Outer to 24/40 Inner Glass Joint Lab Glassware

Adamas-Beta Glass Reducing Connecting Adapter from 14/20 Outer to 24/40 Inner Glass Joint Lab Glassware

Adamas-Beta Lab Glass Enlarging Adapter Connecting Adapter from 24/40 to 14/20 Glass Joint for Lab Glassware

Glass Tube Pipe Joint Adapter Connector 10/14 and 14/18 Joint Sizes for Chemistry Laboratory Set Up (4, 14/18 Joint)