Septum 16mm (15.9mm real) natural rubber..
Septum 30mm (30.7mm real) natural rubber..
Septum for AcroSeal®, butyl rubber/teflon, size: 43 x 3 mm..
Septum for AcroSeal®, teflon/black elastomer, size: 43 x 3 mm..
Serotonin creatinine sulfate monohydrate, 99%..