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 702263 20mL HS vial, clear, 22.5x75.5mm, RB, pk/100 22,58 € on sale 5356B-18M 18mm Metal Closure with bluePTFE/SIL,0.060",pk/100 88,94 € 18031414 ND18Magnetic Screw Cap, Sil/PTFE (white/blue),1.5mm, pk/100 Price on request