Polypropylene 12 x 32 mm Screw Neck Vial, with Cap and Preslit PTFE/Silicone Septum, 300 µL Volume, 100/pk. 12 x 32 mm. Polypropylene. preslit PTFE/Silicone. 100 pk. Autosampler vial. 1.5 mL. 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.