Assembled screw cap with hole and TFE/rubber septum black polypropylene hole cap, 13-425 thread, PTFE/red rubber septum, for use with 4 mL vials with 13-425 thread, pkg of 100 ea: 854991: Vials, screw top, amber glass (vial only) volume 20 mL, amber glass vial, thread for 24-400, pkg of 1000 ea: 854996: Crimp seals with PTFE/silicone septa