Inlet Check Valve Back Catalog number: CTS-A145 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21164 Rotor Seal, 6 port, Rear Price on request CTS-6809 Mobile Phase Transfer Line, TFE, 3/16" OD x 1/8" I Price on request CTS-10600 Check Valve Cartridge, 2/pk Price on request