11mm open top Silver Aluminum Seal

N 11 Aluminium crimp cap, red, center hole Natural Rubber/Butyl red-orange/TEF colourless Hardness: 45° shore A Thickness: 1.0mm pack of 100

8mm Silver Seal, PTFE/Silicone with Slit

Convenience Pack – P/N 31811E-1232 and 5270-11