Burette Self Zeroing Kit

1000-ml low-density polyethylene bottle
four feet of clear NALGENE PVC plastic tubing
polypropylene fill-tube and adapter

Makes any plastic or glass 25- or 50-ml burette self-zeroing, economically and easily. Saves you money over costly glass self-zeroing burets. No more funneling; hazardous, wasteful spills are eliminated. Can be used with almost all aqueous titrants. Set adjustable fill-tube to zero mark on burette. Squeeze bottle to fill burette* just above zero mark. Release and excess liquid returns to bottle and titrant falls to the zero mark. To switch to a different size burette, simply reverse the adapter. Extra closure without tubing hole is included for storing titrants or carrying to the field..