Magnetic Screw Seals ND18, Silicone blue/PTFE white, 1,3mm, pk/100 Back Catalog number: 18031309 Availability: In the manufacturer's stock Price on request - + Recommended 5150BM18-20B 20mm Blue BiMetal Seal, 0.118" PTFE/Silicone 75,54 € 5145TP8-20 20mm Silver Tin Plate Seal, 8mm Hole, 0.100" PTFE/ 114,86 € 702826.0 Vial N18-20, SC, c,22.5x75.5,rd.,label 36,22 €