Sapphire Plunger Back Catalog number: CTS-11434 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-4133 Gold Plunger Seal Price on request PS7050350 MarvelXACT™ PEEKsil™ 50µm ID x 350mm Price on request CTS-10772 Pump Seals, Low Pressure Price on request