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 5080-8896-50 Septa General Purpose Gray 11mm 50/pk 1 879,26 Kč G1545-80530 PCOC 530um Septum Nut 3 602,88 Kč 23154 Thermogreen® LB-2 Septa, 11.5mm, pk/50 Price on request