Check Valve Assembly, Outlet Back Catalog number: 11-1599 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21015 Ferrule, 1/16", SS, 3/pk Price on request CTS-11435 Seal, Needle PEEK™ Price on request CTS-A11095 Check Valve, Double Ball & Seat Price on request