Corning Pyrex Borosilicate Glass Class A Volumetric Pipets, TC/TD, Yellow Color-Coded, 20ml Capacity (Case of 6)

These precision 20mL PYREX volumetric pipets are manufactured and calibrated "To Contain" (TC - bottom line) and "To Deliver" (TD - top line) to specifications for Class A volumetric ware. Pipets are color-coded with colored graduations and calibration lines enameled onto the glass.