Screw cap ND18, silver, closed, Sil/PTFE, pk/100 Back Catalog number: 18 03 1666 Availability: In the manufacturer's stock Price on request - + Recommended 70204.36 5ml Headspace vials N20, clear, 20.5x38mm, pk/100 21,73 € 702093 N20 AL crimp cap, blue SIL/PTFE, pk/100 38,63 € 5150BM18-20B 20mm Blue BiMetal Seal, 0.118" PTFE/Silicone 75,85 €