UPLC Check Valve Assy, Spring Loaded Back Catalog number: CTS-21100 Availability: In the manufacturer's stock Price on request - + Recommended CTS-21243 1/16'' Ferrule set, 2/pk Price on request CTS-10600 Check Valve Cartridge, 2/pk Price on request CTS-21163 Rotor Seal, 2-Groove Price on request