Caps, Screw Top, Solid, with Silicone Rubber / PTFE Liner, fitted in knurled polypropylene, Black Caps. For use with ND15 thread, storage Vials or Bottles. MicroSolv Brand. 100/PK.
Silicone Rubber / PTFE Liner can be used for use with Storage Vials or Bottles with 15-415mm screw threads.
Also, used with heavy wall reaction vials.