Vial crimp seals, BiMetal (magnetic), 20 mm, with PTFE/silicone septa, pkg 100 red seal, septa (blue PTFE/white silicone), diam. x thickness 20 mm x 3 mm
Vial crimp seals with PTFE/silicone/PTFE septa seal diam. x thickness 8 mm x 1.0 mm, silver aluminum seal, red PTFE/silicone/red PTFE septum, pkg of 1000 ea