Check Valve Cartridge, 2/pk Back Catalog number: CTS-10600 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-A11187 Outlet Check Valve Price on request CTS-10761 HPMV 1 & 2 Rebuild Kit w/Spool Price on request CTS-10285 TFE 3-Way Valve 4 (V4) Price on request