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 702646 CenterGuide BTO Septa N 9 74,51 € 8010-0217 CL BTO inlet septa 9mm 50pk 115,55 € 702606 Silicon septa soft, N 13 89,00 €