Inlet Check Valve Cartridge Back Catalog number: CTS-0621 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-4181 Seal Wash (0.0787 ID, Fixed), 2/pk Price on request 11-3889 Needle Seat Assembly, 0.12mm ID Price on request 11-3897 Plunger Holder Price on request