Outlet Check Valve Back Catalog number: CTS-A121 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21463 Check Valve Cartridge, Ceramic, 2/pk Price on request 228-35146-00ASP Plunger Seal for Shimadzu Price on request CTS-A11133 Tube Assembly, Transducer to Check Valve Price on request