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 31020A-2346A 10mL Amber Headspace Vial, 23x46mm (for CTC PAL), 54,27 € 310020-2346A 10mL Amber Headspace Vial, 23x46mm, Flat Bottom, p 50,94 € 702799 N 20 Aluminium pressure release safety cap, silver, center hole, pk/100 6,74 €