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 5190-2209 Gold Plated inlet Seal and Washer, 10/pk 11 560,32 Kč 8010-0218 CL BTO inlet septa 9mm 100pk 4 876,20 Kč 5181-3383-50 Septa , Partial Thru hole Red 11mm 50/PK 1 879,26 Kč