Cartridge Check Valve Housing, 2/pk Back Catalog number: CTS-A11431-02 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21347 Plunger Seal Price on request CTS-A159 Inlet Check Valve Price on request CTS-A11095-02 UPLC Check Valve, Double Ball & Seat, 2/pk Price on request