Check Valve Cartridge, 2/pk Back Catalog number: CTS-10600 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-10989 Face Seals, 4/pk Price on request 11-2891 PTFE Diaphragm, 2/pk Price on request CTS-A168 250μL Syringe Price on request