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 8010-0263 CL Gray inlet septa SHM Plug 50pk 58,19 € 5183-4757 Septa Non-Stick BTO Inlet 11mm 50pk 105,65 € 5080-8894-100 Septa General Purpose Gray 11mm 100/PK 133,44 €