Valve Cartridge, Bio-compatible, NCS/NCP, 2G, for Thermo Dionex Ultimate 3000 Series, DGP-3600BM/RS/SD, HPG-3200RS/SD, HPG-3400RS/SD, ISO-3100BM/SD, LPG-3400BM/RS/SD, NCS-3500RS, NCP-3200RS, VF-P20, ea.