Caps, Screw Top, with Silicone Rubber / PTFE, ultra-pure Septa, fitted in "knurled", polypropylene, Light Blue Caps. For use with 9-425mm thread, 12x32mm autosampler vials, 1000/CS.

When highest purity in a Septa is required. No color added to the rubber or Teflon for improved purity. Good choice for LCMS, GCMS & LCMS/MS.

For Waters® Alliance, Acquity™ and all other autosamplers that require a Pre-Slit Septa use catalog# 9509S-30C-B-M .

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