Outlet Check Valve Back Catalog number: 11-4063 Manufacturer: SCIENCIX Availability: In the manufacturer's stock Price on request - + Recommended CTS-11149 Needle Seal O-Ring, 002 Kalrez Price on request CTS-21240 ACQUITY I-Class SM-FTN Performance Maint. Kit,2890 Price on request CTS-21155 Capillary, 300mm x 0.17mm ID, w/Fittings Price on request