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 5191-8151 Cap,9mm,scrw,clr,thinPP/sil septa,100pk 14,62 € 5120-11 11mm Silver Seal, Polypropylene Lined 22,73 € 32011E-1232A 2.0mL Amber Vial, 12x32mm, with White Graduated Spot, 11mm Crimp 21,35 €