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 702736 CC N11-H, si, RR or/FEP, 45°, 1.3 13,56 € 70242 N 20 PE Cap for crimp neck vials with beveled top N 20 transparent, center hole Butyl beige/PTFE gray Hardness: 55° shore A Thickness: 1.3mm (unassembled) pack of 100 27,28 € 5110-13 13mm Silver Seal, 10mil PTFE Lined 19,89 €