Check Valve Cartridge, 2/pk Back Catalog number: CTS-10600 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-1239 Ferrule, 1/16", SS, 10/pk Price on request CTS-10770 Waste Valve, V3 (2 Way Solenoid Valve) Price on request CTS-11315 Needle Seal, PEEK™ SIL-20 Price on request