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 8010-0234 CL Long Life inlet septa 9mm 100pk 5 714,00 Kč 5181-1260 Septa thru hole 5mm 25/PK 1 095,38 Kč 8010-0205 CL Adv Green inlet septa 10mm 50pk 2 891,70 Kč