PYREX® Volumetric Pipet, To Deliver & To Contain Markings

PYREX® Volumetric Pipet with To Deliver & To Contain Markings are precision pipets which are manufactured and calibrated "To Contain" (bottom line) and "To Deliver" (top line) to specifications for Class A volumetric ware. WARNING: Do not pipet by mouth, we suggest using a mechanical pipetting device.