The screw cap with sealable ring ensures a safe storage of the flask’s content, especially for valuable or dangerous liquids. To close the glass lab flask, the cap has to be placed on the flask: after hearing a light “click”, the plastic ring is attached to the flask’s neck. When the screw cap is opened for the first time, the perforation is released. In this manner, one can see very simply that the screw cap was opened.
- For screw thread GL45.
- Manufactured in polypropylene.
- Temperature resistance to +140°C.
- The cap can also be used as a regular screw cap after the first opening of the screw cap (which means breaking of the seal).
