MilliporeSigma. Material: PTFE/silicone septum, aluminum seal, clear glass vial Description: unassembled Packaging: pkg of 100 ea O.D. × H × I.D.: 12 mm × 32 mm × 6.0 mm Size: 2 mL Volume: 2 mL Fitting: for 11 mm crimp. Related Products: Ptfe Septum. Compare this item.