Check Valve Cartridge, 2/pk Back Catalog number: CTS-A094 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-11294 1515 Performance Maintenance Kit Price on request CTS-21015 Ferrule, 1/16", SS, 3/pk Price on request CTS-11313 PEEK™ Rotor, LPV Price on request