Avoid outside contamination with this highly accurate closed system.
• Borosilicate glass burettes have white 0.1ml graduations and are mounted to a high-density polyethylene screw cap
• Squeezing the flexible polyethylene bottle forces liquid into the burette
• Built in overflow automatically drains excess liquid back into reservoir
• Glass stopcock has a 2mm bore
• Large, stable plastic base can be detached from reservoir
• Accuracy of burette is within 1% of total volume; graduation accuracy is Class A