Seal G13 for 4mL vials PTFE/silicone, pk/100 Back Catalog number: V0004-D Manufacturer: LCTech Availability: 3 weeks Price on request - + Recommended 610050-22 20mm x 0.100" PTFE/Silicone Septa for 22mm Closure 66,87 € 5001L2-20 20mm Gray Chlorobutyl Lyophilization Stopper - 2 P 312,25 € 702101 Septa N20Mld. But/PTFE gr, 50°, 3.0 25,35 €