Caps, Screw Top, with Silicone Rubber / Polypropylene Septa, in "knurled", Polypropylene Blue Caps. AQ Brand. 100/PK.
These unique Screw Caps can be used for almost any sample but are designed for Polyfluoroalkyl Substances (PFAS) testing in our Autosampler Vials. The silicone rubber (for optimal sealing), and Polypropylene fitted Septa (for inertness) are excellent for chromatography. These caps do not contain PTFE like most other autosampler vial caps. For more information on PFAS, Click HERE.
Use with AQ™ Brand or RSA™ brand 9mm screw thread autosampler vials for best performance and sealing.
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