Burette Rotaflo Class B 50ml-(ELS-BRB406)

- Graduated in amber stain, these Class B burettes are fitted with a General Purpose Rotaflo® PTFE needle valve stopcock allowing fine flow control. Complies with ISO 385 With GP Rotaflo® stopcock having PTFE key - no lubrication required, no seizure with caustic solutions, provides fine drop control, 3.0mm key bore Graduations in permanent amber stain which is fused into the glass and is especially resistant to aggressive cleaning solutions Manufactured from borosilicate glass -