Septa, PTFE/White Silicone, 8mm for 8-425, pk/100

12mm x 0.040" PTFE/Red Rubber Septa, pk/100

10mm x 0.060" Red PTFE/Silicone Septa, pk/100

17.5mmx0.060" Blue PTFE/Sil Septa for 18mm,pk/1000