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 5500-11 11mm Clear Poly Crimp™ Seal, with Molded Septum [Patented] 136,00 Kč 5191-8161 Cap,scrw,PolyMg,bndd,Pslt,PTFE/sil,100pk 1 501,87 Kč 5145BTP8-20 20mm Gold Tin Plate Magnetic Seal, 8mm Hole, 0.125" Natural PTFE/Blue Silicone Lined 2 286,00 Kč