Cartridge Check Valve System Kit Back Catalog number: CTS-21011 Manufacturer: SCIENCIX Availability: In the manufacturer's stock Price on request - + Recommended CTS-10597 Wash Tube Seal Kit, 4/pk Price on request CTS-A11376 Mixer Assembly, 100μL Price on request PL7075350 MarvelXACT PLS 75µm x 350mm Price on request