Cartridge, Intelligent Valve, 2/pk Back Catalog number: CTS-A11336-02 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-10758 Pump Seals, High Pressure Price on request CTS-21463 Check Valve Cartridge, Ceramic, 2/pk Price on request CTS-3102 Sapphire Plunger Price on request