Cartridge Check Valve System Kit Back Catalog number: CTS-21011 Manufacturer: SCIENCIX Availability: In the manufacturer's stock Price on request - + Recommended CTS-5746 Reference Valve Rebuild Kit Price on request CTS-11141 ACQUITY SM Performance Maintenance Kit, 700005236 Price on request CTS-21469 250 μL Syringe, High Pressure Price on request