Inlet Check Valve Cartridge Back Catalog number: CTS-0621 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-11312 PEEK™ Rotor, HPV Price on request CTS-5531-05 Solvent Bottle Filter, 5/pk Price on request CTS-21526 Jig, Diaphragm Price on request