Plunger Seal and Back Up Ring Back Catalog number: 11-4126 Manufacturer: SCIENCIX Availability: In the manufacturer's stock Price on request - + Recommended CTS-A11145 Tube Assy, System Outlet, SDS Price on request CTS-10686 Needle Seal, Vespel® Price on request 11-3830 Metering device Seal Price on request