Face Seals, 4/pk Back Catalog number: CTS-10989 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-A126 Outlet Check Valve Assembly Price on request CTS-21015 Ferrule, 1/16", SS, 3/pk Price on request CTS-10476 Sapphire Plunger, Alliance Price on request