Tube Assembly, Transducer to Check Valve Back Catalog number: CTS-A11342 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-2401 Check Valve Cartridge, Ceramic Ball & Seat, 2/pk Price on request CTS-A125 Inlet Check Valve Assembly Price on request CTS-21089 Needle Seal (For pH 1-14, for operation up to 130 Price on request