Sapphire Plunger Back Catalog number: CTS-11425 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-A11133 Tube Assembly, Transducer to Check Valve Price on request CTS-A11145 Tube Assy, System Outlet, SDS Price on request CTS-10989 Face Seals, 4/pk Price on request