Chemglass, CG-1318-40, Complete Kit: 24/40 Glass Adapter with All 6 Threaded Vial Adapters: 13-425, 15-425, 18-425, 20-400, 22-400, 24-400
Adapters permit the connection of standard laboratory dram sample vials directly to the vapor tube or a bump trap of a rotary evaporator.
Adapters have a top outer joint of the listed size and a thread at the bottom. A PTFE-lined, phenolic, double-threaded connector attaches the vial to the adapter.