Caps, Screw Top, with White Silicone Rubber / White PTFE Septa, fitted in "knurled", polypropylene, Blue Caps. Recommended for Mass Spec. For use with 9-425mm thread, 12x32mm autosampler vials. Compares to Agilent caps. 100/PK.
Additional Info:
Made with ultra-pure silicone/PTFE septa and recommended for LCMS or GCMS.