Nature PTFE/Nature silicone septa 22 x 3mm, pk/100 Back Catalog number: S228 Availability: In the manufacturer's stock Price on request - + Recommended 606MS-9.5 9.5mm Diameter White PTFE/Off White Silicone Septa 18,55 € 606050B-18M/1000 17.5mmx0.060" Blue PTFE/Sil Septa for 18mm,pk/1000 377,81 € 610050-22 20mm x 0.100" PTFE/Silicone Septa for 22mm Closure 65,24 €