Seal G13 for 4mL vials PTFE/silicone, pk/100 Back Catalog number: V0004-D Manufacturer: LCTech Availability: 3 weeks Price on request - + Recommended 601010-13 13mm x 0.010" White PTFE Septa, pk/100 4,38 € 606HTX-17 17mm Diameter HT-X High Performance Blue Silicone 40,23 € 606550Y-11 11mm Diameter Long Life Yellow Septa, pk/25 42,34 €