Deactivated Clear Glass 12 x 32 mm Screw Neck Vial with Cap and Preslit PTFE/Silicone Septum, 2 mL Volume, 100/pk. 12 x 32 mm. Deactivated Clear Glass. preslit PTFE/Silicone. 100 pk. Autosampler vial. 300 µL. LCGC Certified Clear Glass 12 x 32 mm Screw Neck Vial, with Cap and PTFE/Silicone Septum, 2 mL Volume, 100/pk.