Inlet Check Valve Cartridge Back Catalog number: CTS-0621 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-10761 HPMV 1 & 2 Rebuild Kit w/Spool Price on request PL7100150 MarvelXACT PLS 100µm x 150mm Price on request CTS-A11187 Outlet Check Valve Price on request