Outlet Check Valve Back Catalog number: CTS-A11187 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-10711 Alliance Head Plunger Seal Kit, Black, 2/pk Price on request CTS-21010 Cartridge Check Valve Housing, 2/pk Price on request CTS-11366 Piston, High Pressure Price on request