PerkinElmer Headspace Butyl Rubber Septa (Septa,cap and Star spring), Pkg 1000 - B0159357

Headspace Butyl Rubber Septa (Septa,cap and Star spring), Pkg 1000. For sealing sample vials for temperatures up to 100°C. Very low background peaks, lowest permeability, recommended for repetitive injections from the same vial. Includes aluminum caps and star springs. Note: Due to the patent which PerkinElmer holds on the closures system of the Headspace vials, the caps, septa, and star springs cannot be sold separately.(includes patented pressure-relief crimp cap and star springs).