The Septum, official name for the "rubber stopper" on this Beligas NPP 150mg/ml vial popped out (sides ripped) after only 3 pins. I use a 20 ga needle to draw and the first vial looked pretty bad but held up. The rubber stopper on the Pharmaqo is really nice, and the one on US-Pharmacies replacement (NPP 100mg/ml) is nicer as well.


