Sapphire Plunger Back Catalog number: CTS-10323 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21100 UPLC Check Valve Assy, Spring Loaded Price on request CTS-11425 Sapphire Plunger Price on request CTS-21463 Check Valve Cartridge, Ceramic, 2/pk Price on request