Check Valve Cartridge, Ceramic Ball & Seat, 2/pk Back Catalog number: 11-2401 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-3883 Needle Assembly Price on request 11-3832 Wash Seal, PE, 1220, 1260, 1290 Price on request PL7075600 MarvelXACT PLS 75µm x 600mm Price on request