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 702657 CenterGuide AG3 Septa N 11 1 685,00 Kč 702628 Silicon septa PTFE, N13 2 729,00 Kč 5181-8815 Microseal Septum, low pressure 5 261,76 Kč