Cartridge Check Valve Housing, 2/pk Back Catalog number: CTS-A11431-02 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-3889 Needle Seat Assembly, 0.12mm ID Price on request CTS-11282 1525 Performance Maintenance Kit Price on request CTS-A11142 Tube Assy, Inject Outlet Price on request