Sapphire Plunger Back Catalog number: CTS-10323 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21012 Compression Screws & Ferrules, 1/16", SS, 5/pk Price on request CTS-10560 Seal Wash Plunger Seal, Alliance, 2/pk Price on request CTS-A094 Check Valve Cartridge, 2/pk Price on request