Rotor Seal Back Catalog number: CTS-10942 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-2401 Check Valve Cartridge, Ceramic Ball & Seat, 2/pk Price on request CTS-A094 Check Valve Cartridge, 2/pk Price on request CTS-21075 Tube Assy, BSM Outlet to SM Price on request