Eisco Glass Burettes with PTFE Needle Valve Stopcock

Needle valve control knob for the greatest flow rate range.

• Class A and Class B versions available
• Made from high quality 3.3 borosilicate glass
• Blue enamel graduations for contrast against clear liquids
• Straight single bore

The body of these glass burettes are made of precisely bore high quality, heavy duty borosilicate 3.3 glass with excellent durability and chemical resistance. They feature flow control via a PTFE needle valve. Both Class A and Class B versions conform with DIN ISO 385 standards for accuracy. Each burette includes an attached key stopcock made of high quality glass and features blue graduations and markings. Calibrated to deliver.