Outlet Check Valve Back Catalog number: 11-4063 Manufacturer: SCIENCIX Availability: In the manufacturer's stock Price on request - + Recommended 11-2570 Needle Seat Price on request 11-4122 PTFE Diaphragm, LC-30AD/i-Series, 2/pk Price on request 11-3321 Wash Seal Gasket, 6/pk Price on request