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 702917 6ml HS Crimp vial N20, 22x38mm, clear, RB, pk/100 22,69 € 320020-2375A 20mL Amber Headspace Vial, 23x75mm, Flat Bottom, 2 46,36 € 702540 Vial N20-20, CR, c, 23x75.5,r, HS(PE Lab 32,56 €