Check Valve Assembly, Outlet Back Catalog number: 11-1599 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-6958 Indicator Rod Kit Price on request CTS-12013 Tungsten Lamp (1000 hr) Price on request 11-4122 PTFE Diaphragm, LC-30AD/i-Series, 2/pk Price on request