6720-20 - Flask, 20l, Indented, X-Lg Flange
6720-20 Flask, indented powder drying, 20L, 413mm height, x-large flange , part 28593
These flasks are also referred to as drying flasks. They are particularly suited to the drying of powdered samples as the baffles or indents provide superior mixing over plain wall flasks. X-Large flanges, common on R220 units, are 149.5mmod, 118.8mmid and 21mm thick.