Lot of 2 Chemglass CG-1594-01 Dewar Flask Wide Mouth Metal Housing 350mL Cap. Insulated liquid nitrogen dewar flasks. Pre-owned in nice clean condition. Please see photos for details. Low Form Dewar Flask, Hemispherical, 600mL Capacity, Fits 500mL RBF, 140mm ID X 65mm Inside Depth, 165mm OD X 95mm Height.