Check Valve Cartridge, 2/pk Back Catalog number: CTS-10493 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-1599 Check Valve Assembly, Outlet Price on request CTS-A168 250μL Syringe Price on request 11-1239 Ferrule, 1/16", SS, 10/pk Price on request