Needle Seat Assembly, 0.12mm ID Back Catalog number: 11-3889 Availability: In the manufacturer's stock Price on request - + Recommended CTS-21155 Capillary, 300mm x 0.17mm ID, w/Fittings Price on request CTS-A094 Check Valve Cartridge, 2/pk Price on request CTS-10319 Sapphire Plunger Price on request