Seal G13 for 4mL vials PTFE/silicone, pk/100 Back Catalog number: V0004-D Manufacturer: LCTech Availability: 3 weeks Price on request - + Recommended 607550-13 13mm x 0.075" Red PTFE/Silicone Septa, pk/100 24,11 € 702481 Septa N8, Sil white/PTFE blue, pk/100 19,66 € V0322100 11mm Septa,Red PTFE/White Silicone with slit ,0.05 14,02 €