Using a rotary evaporator | Resource | RSC Education
Bump Trap, 250mL, Rotary Evaporator, Modified, 24/40 Top Outer, 14/20 Lower Inner. Similar to CG-1320, but with the addition of two 4mm drain holes at the base of the inner tube to allow solvent to drain back into the evaporation flask. Traps have a 24/40 top outer joint and the listed size of lower inner joint. 30.