Check Valve Cartridge, Ceramic Ball & Seat, 2/pk Back Catalog number: 11-2401 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-11119-02 Head Plunger Seal, 2/pk Price on request CTS-10532 Seal Wash Face Seal Price on request CTS-A117 Inlet Check Valve Price on request