Cartridge Check Valve System Kit Back Catalog number: CTS-21011 Manufacturer: SCIENCIX Availability: In the manufacturer's stock Price on request - + Recommended 11-4181 Seal Wash (0.0787 ID, Fixed), 2/pk Price on request PL7050600 MarvelXACT PLS 50µm x 600mm Price on request PS7025350 MarvelXACT™ PEEKsil™ 25µm ID x 350mm Price on request