Check Valve Cartridge, Ceramic Ball & Seat, 2/pk Back Catalog number: 11-2401 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended PL7075600 MarvelXACT PLS 75µm x 600mm Price on request 11-4063 Outlet Check Valve Price on request CTS-11080 Alliant Solvent Mgr PM Kit Price on request