Injection Valve Rotor Seal Back Catalog number: CTS-10573 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21012 Compression Screws & Ferrules, 1/16", SS, 5/pk Price on request CTS-21243 1/16'' Ferrule set, 2/pk Price on request CTS-21089 Needle Seal (For pH 1-14, for operation up to 130 Price on request