Caps, Headspace, Screw Top, with White Silicone Rubber / Blue PTFE SPME Style Septa, fitted in Steel, Magnetic, Silver Caps with 8mm center holes. For use with 18mm Precision Thread Headspace Vials. MicroSolv Brand. 100/PK.

Additional Info:

Special Shape Septa with thick outer ring and thinned center provides a good sealing with the vial and a target area easer for needles to penetrate. Recommended with CTC Combi Pal® and other autosamplers with SPME or Solid Phase Micro-Extraction injectors.

Cap has ND18 Screw Threads.

 

 

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