Check Valve, Ti, Back Catalog number: CTS-21129 Availability: In the manufacturer's stock Price on request - + Recommended CTS-5656 Sapphire Plunger Price on request 11-2891 PTFE Diaphragm, 2/pk Price on request CTS-6809 Mobile Phase Transfer Line, TFE, 3/16" OD x 1/8" I Price on request