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 G3452-60730 Split/Splitless Inlet Insert w/Vent Full 16 277,76 Kč 5080-8732 Sleeves, packed inlet, 170ul vol, 25/PK 1 557,44 Kč 702609 Standard septa, N 9 ST 1 488,00 Kč