Our beaker features a single-spout design and easy-to-read silk-screened graduations. It is stackable to save storage room. Run these beakers at autoclave at 121C (250F) 15 psig for 20 minutes to get sterile product. Sold in each. NSN: 6640009821289UOM: each Capacity: 1 Liter (32 oz. )Graduation Interval: 50 overall height: 6 inches Overall diameter: 5 inches Material: Polypropylene (autoclavable)Type: Low Form Griffin Beaker Color: Translucent ax use Temperature: 135 Celsius or 275 Fahrenheit Flexibility: Rigid Specific Gravity: 0. 90