13-425mm Black, Polypropylene Open Hole Cap 5310-13(100)

Screw Thread Closures (13-425mm).Available in a wide assortment of colors. Designed for use with all autosamplers. The Top Seal™closure with a 10mil molded septa allows for easy needle penetration and is inert to most solvents. The one-piece design saves time by eliminating the process of assembling liners in the closures.