Caps, Screw Top, Solid, with White Silicone Rubber / Red PTFE Liner, fitted in knurled polypropylene, Black Caps. For use with ND15 thread, storage Vials or Bottles. MicroSolv Brand. 100/PK.
Natural Rubber / TFE Liner is 45⁰ Shore A (hardness) and is 1.3mm thick. Cap can be used for use with Storage Vials or Bottles with 15-400mm screw threads.