Seal G13 for 4mL vials PTFE/silicone, pk/100 Back Catalog number: V0004-D Manufacturer: LCTech Availability: 3 weeks Price on request - + Recommended 612550-20ULB .125 Thick Natural PTFE/Blue Ultra Low Bleed Sili 63,22 € 70278 N 20 septa Silicone white/PTFE, 3mm, pk/100 30,15 € 606050B-18M/1000 17.5mmx0.060" Blue PTFE/Sil Septa for 18mm,pk/1000 377,81 €