Burrette 25ml Pyrex B Automatic (Exc. bottle)

This auto zero burette is designed for simplicity and ease of use. To fill the burette tube, simply squeeze the polyethylene reservoir bottle (provided separately) and release the pressure to allow any excess liquid to drain back into the reservoir, effectively setting the burette to zero. It complies with ISO 385 standards and belongs to Class B. Filling is made easy with automatic zero adjustment?squeeze the polyethylene bottle to fill the burette, release pressure to allow excess liquid to drain back into the bottle, and set the burette to zero. It features a PTFE Rotaflo® Stopcock for grease-free performance and fine drop-wise control, along with a 3mm bore PTFE key. The burette has graduations in white enamel and is manufactured from borosilicate glass.