Pre-slit White PTFE/Red Silicone Septa, 11mm Crimp-top Aluminum Cap, 5.5mm Centre Hole Back Catalog number: PL30A-016 Availability: In the manufacturer's stock Price on request - + Recommended 32011-1232Z Silanized - 2.0mL Clear Standard Vial, 12x32mm, 11mm Crimp 52,61 € 5160-11R 11mm Red Seal, PTFE/Silicone/PTFE Lined 32,43 € 5061-3370 11mm Al crimp cap PTFE/Rubber sept 500PK 96,95 €