PYREX® Narrow Mouth Erlenmeyer Flasks with [ST] Glass Stopper, Corning 5020

These Corning narrow mouth PYREX® Erlenmeyer flasks are furnished with a PYREX® standard taper glass stopper for secure sealing. Erlenmeyer flask uniform wall thickness provides the proper balance between mechanical strength and thermal shock resistance. For convenience - these Pyrex Erlenmeyer flasks are graduated to show approximate capacity. These narrow mouth 50mL PYREX® Erlenmeyer flasks have No. 19 PYREX® standard taper stoppers for secure sealing. Their uniform wall thickness provides the proper balance between mechanical strength and thermal shock resistance. For convenience - these flasks are graduated to show approximate capacity. The 50mL flasks are satisfactory for use as weighing bottles. Material: Borosilicate glass code 7740.