Cartridge Check Valve System Kit Back Catalog number: CTS-21011 Manufacturer: SCIENCIX Availability: In the manufacturer's stock Price on request - + Recommended CTS-10694 Plunger Seal Price on request PS7050150 MarvelXACT™ PEEKsil™ 50µm ID x 150mm Price on request 11-2891 PTFE Diaphragm, 2/pk Price on request