These narrow mouth 250 mL PYREX® Erlenmeyer flasks have No. 27 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. For replacement stoppers see No. 7650.
For convenience, these flasks are graduated to show approximate capacity. The 25 mL, 50 mL, and 125 mL flasks are satisfactory for use as a weighing bottle.
For stopper only, see Cat. No. 7650.