Cartridge Check Valve Housing, 2/pk Back Catalog number: CTS-A11431-02 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-5746 Reference Valve Rebuild Kit Price on request CTS-21287 Needle Kit, 15 µL with Needle Seat and Needle Guid Price on request CTS-21526 Jig, Diaphragm Price on request