12 x 32 mm, PTFE/Silicone Septum (with Slit) 100 29392-U 15% or ask Account Manager for bulk* Crimp (Crimp vial kits with cap/septa) 2 mL, clear glass vial, wide opening, crimp top PTFE/silicone septum 100 29125-U 15% or ask Account Manager for bulk*