Plunger Seal and Back Up Ring Back Catalog number: 11-4126 Manufacturer: SCIENCIX Availability: In the manufacturer's stock Price on request - + Recommended 11-4121 Ceramic Plunger Holder Assembly, LC-10ADvp Price on request CTS-A11376 Mixer Assembly, 100μL Price on request PS7075350 MarvelXACT™ PEEKsil™ 75µm ID x 350mm Price on request