Cartridge, Intelligent Valve, 2/pk Back Catalog number: CTS-A11336-02 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-00230-02 O-Ring, PTFE Price on request CTS-0620 Outlet Check Valve Cartridge Price on request CTS-A11133 Tube Assembly, Transducer to Check Valve Price on request