Septa 17.5mm for ND18, Silicone blue/PTFE white, 1,3mm, pk/100 Back Catalog number: 17021417 Availability: In the manufacturer's stock Price on request - + Recommended 702663 CenterGuide Marathon Septa Shimadzu 96,00 € 8010-0223 CL BTO inlet septa 11mm 50pk 111,40 € 5080-8894-100 Septa General Purpose Gray 11mm 100/PK 137,18 €