1L Corning Pyrex Griffin beaker, double graduated, with spout, manufactured with uniform wall thickness, offers optimum balance between thermal shock resistance and mechanical strength. For your convenience, these beakers include an extra large marking spot and a double graduated metric scale indicating approximate content. Material: Borosilicate Glass Code 7740. Capacity: 1L. Beaker Style: Griffin. Graduation Range: 50-1000mL. Graduation Interval: 50mL. Height: 158mm (approx). Outer Diameter: 108mm (approx). Reference: ASTM E-960. Corning #: 1000-1L.