Plunger Seal and Back Up Ring Back Catalog number: 11-4126 Manufacturer: SCIENCIX Availability: In the manufacturer's stock Price on request - + Recommended CTS-10475 Sapphire Plunger Kit Price on request CTS-21129 Check Valve, Ti, Price on request PS7050350 MarvelXACT™ PEEKsil™ 50µm ID x 350mm Price on request