Screw caps for 9 mm screw neck vials, Chromacol ™ Supplier: CHROMACOL Description: Chromacol ™, N/A, Chromatography vial closure, PP, Ø (mm): 9 mm, Blue screw cap, open top with 6 mm hole, Type: 9-SC(B)-ST1X, Hardness: 57 °shore A, Septum: White silicone/red PTFE, pre-slit, Thickness: 1,0 mm