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 450-1000 Septum Tool, Knurled Handle 854,79 Kč 5183-4761 Septa Non-Stick Long Life 11mm 50pk 3 169,30 Kč 8010-0240 CL Long Life inlet septa 11mm 100pk 5 714,00 Kč