Rubber Stoppers, Grey-Blue, 20 (201186)

Elastic natural rubber provides good tightness and adhesion. DIN Standard 18271.

For pipets, vials, bottles, flasks or balloons. Withstands chemical agents in normal laboratory use.

Average resistance at temperatures between -25 DEG and 70 DEG C (120 DEG C in humid conditions). Gray-blue color.

• High series low taper.
• With or without hole.