Check Valve Cartridge, 2/pk Back Catalog number: CTS-10493 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended PS7100350 MarvelXACT™ PEEKsil™ 100µm ID x 350mm Price on request CTS-21480 Check Valve, Cartridge Price on request CTS-21526 Jig, Diaphragm Price on request