Caps, Headspace, Crimp Top, supplied with Grey Butyl Rubber Stoppers to be inserted into Aluminum, Silver Caps with 10mm center holes. For use with 20mm Crimp Top Headspace Vials. MicroSolv Brand. 100/PK.
Additional Info:
Shaped, Injection Stoppers, Butyl Rubber used in Perkin Elmer and other Injectors. Useful when PTFE cannot be used.
Sometimes the stoppers are placed in the vials and the supplied caps are placed on the septa and then crimped.
Lowest cost for budget minded laboratories.