Sapphire Plunger Back Catalog number: CTS-10475-1 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21463 Check Valve Cartridge, Ceramic, 2/pk Price on request CTS-A11145 Tube Assy, System Outlet, SDS Price on request 11-1601 Seal, GFP, High Pressure, Piston Price on request