18mm Magnetic Screw Cap, blue SIL/PTFE, pk/100 Back Catalog number: 18 03 1309 Availability: In the manufacturer's stock Price on request - + Recommended 5183-2080 Clr Vial,scrw cp,w/spt,slit PTFESi 500PK 383,26 € 5185-5820 Blue screw caps,PTFE/red sil septa,500pk 132,93 € 34013E-1545A 4.0mL Amber Vial, 15x45mm, w/Grad., 13-425, pk/100 25,56 €