Cap Kit, Threaded, PP, 10-425, Black, Tan PTFE/Silicone, Pre-Slit: 100/PK : 500 063: $53.31: Cap Kit, Threaded, PP, 10-425, Black, Tan PTFE/Silicone: 100/PK : 500 067: $45.29: Cap Kit, Threaded, PP, 10-425, Natural, Molded Polypropylene: 100/PK : 501 357: $13.03