Check Valve Cartridge, Ceramic Ball & Seat, 2/pk Back Catalog number: 11-2401 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-1010T O-Ring, TFE Price on request PS7075350 MarvelXACT™ PEEKsil™ 75µm ID x 350mm Price on request CTS-11297 Sapphire Plunger Price on request