Check Valve Cartridge, 2/pk Back Catalog number: CTS-A094 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-A11094-02 UPLC Primary Check Valve Assy, 2/pk Price on request CTS-20612 Plunger Seal, Black Price on request CTS-21129 Check Valve, Ti, Price on request