Needle Seat Assembly, 0.12mm ID Back Catalog number: 11-3889 Availability: In the manufacturer's stock Price on request - + Recommended CTS-A103 Outlet Check Valve Price on request CTS-21169 Assy, Capillary, 90mm x 0.17mm ID, w/Fittings Price on request CTS-21463 Check Valve Cartridge, Ceramic, 2/pk Price on request