Seal G13 for 4mL vials PTFE/silicone, pk/100

Green High Temo/Low Bleed GC Speta, 17mm, pk/25

Septa, Blue PTFE/white silicone，17.5mm ,0.06″thic

N22 septa Butyl red/PTFE grey, Th. 2.4mm, pk/100