Needle Seal, Vespel® Back Catalog number: CTS-10686 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21129 Check Valve, Ti, Price on request CTS-A11133 Tube Assembly, Transducer to Check Valve Price on request CTS-A11336-02 Cartridge, Intelligent Valve, 2/pk Price on request