Cartridge Check Valve System Kit Back Catalog number: CTS-21011 Manufacturer: SCIENCIX Availability: In the manufacturer's stock Price on request - + Recommended PS7025350 MarvelXACT™ PEEKsil™ 25µm ID x 350mm Price on request 11-2569 Seal Extension Tube Price on request 11-2401 Check Valve Cartridge, Ceramic Ball & Seat, 2/pk Price on request