Sapphire Plunger Back Catalog number: CTS-11297 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-2401 Check Valve Cartridge, Ceramic Ball & Seat, 2/pk Price on request PL7075600 MarvelXACT PLS 75µm x 600mm Price on request CTS-10694 Plunger Seal Price on request