Cartridge Check Valve Housing, 2/pk Back Catalog number: CTS-A11431-02 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-3332 100μL Syringe for WPS-3000 Series Price on request CTS-21585 PM Kit, 1220 Price on request CTS-11282 1525 Performance Maintenance Kit Price on request