20 mm Crimp Top Aluminum Silver Cap wi

Perkin Elmer 20 mm Crimp Top Aluminum Silver Cap wi; For sealing sample vials for temperatures up to 160 °C. Very low background peaks, very low permeability, not recommended for repetitive injections from the same vial. Includes un-assembled 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. - PE