9mm Open Top Cap, 6mm Hole Black Polypropylene Ivory PTFE/Red Rubber 45 1.0 13-622-180 100 Blue Polypropylene Ivory PTFE/Red Rubber 45 1.0 03-391-31 100 Black Polypropylene Red PTFE/White Silicone/Red PTFE 50 1.0 13-622-181 100 Blue Polypropylene Red PTFE/White Silicone/Red PTFE 50 1.0 03-391-32 100 . Crimp Seals with Septa - Thomas Sci