PYREX 250mL Narrow Mouth Erlenmeyer Flask with PYR

Corning These narrow mouth 250mL 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. - COG