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 702834 N20 bimetal cap,blue/silver, blue SIL/PTFE, pk/100 49,64 € 702866 10mL HS vial N18,22.5x46mm, clear, round b.,pk/100 26,59 € 70234.9 CC N20-H, si, Mld. But/PTFE gr, 50°, 3.0 39,08 €