Outlet Check Valve Back Catalog number: CTS-A121 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21240 ACQUITY I-Class SM-FTN Performance Maint. Kit,2890 Price on request CTS-21564 Needle, Uncoated 10 Series Price on request CTS-21243 1/16'' Ferrule set, 2/pk Price on request