Glass Vial Convenience Packs Description Unit Part No. Clear vials, blue screw caps, PTFE/red silicone septa 100/pk 5182-0553 Clear vials with write-on spot, blue screw caps, PTFE/red silicone septa 100/pk 5182-0864 Amber vials with write-on spot, green screw caps, PTFE/red silicone septa 100/pk 5182-0554