Cartridge Check Valve System Kit Back Catalog number: CTS-21011 Manufacturer: SCIENCIX Availability: In the manufacturer's stock Price on request - + Recommended CTS-11092 O-Ring, PTFE Price on request PS7050350 MarvelXACT™ PEEKsil™ 50µm ID x 350mm Price on request CTS-21469 250 μL Syringe, High Pressure Price on request