Check Valve Assembly, Inlet Back Catalog number: 11-1598 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21095 Seal Wash (0.0787 ID, Fixed, Bio), 2/pk Price on request CTS-5746 Reference Valve Rebuild Kit Price on request CTS-A11336 Cartridge, Intelligent Valve Price on request