Needle Seat Assembly, 0.12mm ID Back Catalog number: 11-3889 Availability: In the manufacturer's stock Price on request - + Recommended 11-2401 Check Valve Cartridge, Ceramic Ball & Seat, 2/pk Price on request PS7050350 MarvelXACT™ PEEKsil™ 50µm ID x 350mm Price on request 11-4134 Rotor Seal & Pod Repair Kit, Vespel, 3-Groove for Price on request