Check Valve Cartridge, Ceramic, 2/pk Back Catalog number: CTS-21463 Availability: In the manufacturer's stock Price on request - + Recommended 11-4052 Needle Seal, SIL-30AC, SIL-30ACMP Price on request CTS-A138 Ceramic Plunger Assembly Price on request PL7025150 MarvelXACT™ PLS 25µm x 150mm Price on request