Flask, 50ml, Pyrex® Heavy Duty Erlenmeyer 12/pk

These PYREX® Erlenmeyer flasks are designed with heavy duty rims to reduce chipping. Their uniform wall thickness provides the proper balance between mechanical strength and thermal shock resistance. • Narrow mouth with heavy duty rim • Graduations in durable white enamel • Large marking spot • Thermal & mechanical shock resistance • Unit: 12/pack • Capacity: 250ml • Graduation Range: 20-50ml • Graduation Interval: 10ml • Mouth Opening: 15mm • Height: 78mm (approx) • Outer Diameter: 51mm (approx) • Rubber Stopper Size: 1 (sold separately) • Filter Adapter: 1 (sold separately)