Check Valve Cartridge, Ceramic Ball & Seat, 2/pk Back Catalog number: 11-2401 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-11312 PEEK™ Rotor, HPV Price on request PS7025600 MarvelXACT™ PEEKsil™ 25µm ID x 600mm Price on request CTS-10761 HPMV 1 & 2 Rebuild Kit w/Spool Price on request