Check Valve, Ti, Back Catalog number: CTS-21129 Availability: In the manufacturer's stock Price on request - + Recommended CTS-6809 Mobile Phase Transfer Line, TFE, 3/16" OD x 1/8" I Price on request 11-3889 Needle Seat Assembly, 0.12mm ID Price on request CTS-A11336-02 Cartridge, Intelligent Valve, 2/pk Price on request