Burette brush. For 25ml burette. Brush part is white bristle 3-1/4 inches long, 1/2 inch diameter. Total length 30 inches.
These brushes have become popular with hikers and mountain bikers who use Camelback rehydration systems and need to clean algae out of the plastic water tubes.
Forensics Lab Supply Number 3070145.
Formerly Grau-Hall Corporation dba Grau-Hall Scientific.