Automatic Self Zeroing Burette With PTFE Key

Borosilicate glass burette has a PTFE key giving accurate and economical liquid dispensing. These burettes are mounted on a high-density polyethylene bottles crew cap (HDPE bottle). It works by squeezing the flexible polyethylene bottle which forces liquid into the burette, the built-in overflow automatically passes excess liquid back into the reservoir (HDPE bottle).