Pilfer-proof break ring at the lower end of the protective outer cap.
Foolproof guarantee that the customer is the first to open the bottle: The lower ring breaks off upon first opening of the red cap.

Triple sandwich septum with inner silicone layer and double outer Teflon coating.
Better chemical compatibility and re-closure of any puncture hole.

Quadrant cap surface.
The quadrant cap promotes the durability of the septum as punctures are ideally spread over the septum surface.

Cushioning liner in outer protective cap.
Re-seals perfectly even after the septum suffered multiple punctures.

Extra design rim at the inner surface of the septum holding cap will hold and stretch the septum.
Considerable lower risk for bulging or deformation of the septum.

3+ windings in the septum holding cap for extra security.
Large contact surface prevents infiltration of air and moisture through the screw neck.

Special design rim inside the septum holding cap fits snuggly over the glass rim on the bottle neck.
No risk for involuntary unscrewing of the septum holding cap.