Plunger Seal and Back Up Ring Back Catalog number: 11-4126 Manufacturer: SCIENCIX Availability: In the manufacturer's stock Price on request - + Recommended CTS-21564 Needle, Uncoated 10 Series Price on request CTS-21085 Rotor Seal, 6 port, -COH Price on request CTS-A103 Outlet Check Valve Price on request