Check Valve Cartridge, Ceramic Ball & Seat, 2/pk Back Catalog number: 11-2401 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended PL7050350 MarvelXACT PLS 50µm x 350mm Price on request CTS-A121 Outlet Check Valve Price on request 11-3889 Needle Seat Assembly, 0.12mm ID Price on request