Needle Seal, Vespel® Back Catalog number: CTS-10686 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-10319 Sapphire Plunger Price on request CTS-11265 Kit S200 Standard Pump Seals Price on request CTS-A11372 Tube Assy, Transducer to Check Valve, I2V Price on request