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 702619 High temperature septa N 9 HT 2 323,00 Kč 8010-0255 CL Gray inlet septa 11mm 50pk 1 437,69 Kč 702609 Standard septa, N 9 ST 1 488,00 Kč