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 5150BM18-20R 20mm Red BiMetal Seal, 0.118" PTFE/Silicone 75,54 € 322AXLN-2375 20mL Clear Headspace Vial, 23x75mm (for CTC PAL, P 58,54 € 5150BTP8-20 20mm Gold Magnetic Seal, 8mm Hole, 0.125" PTFE/Blu 77,09 €