Needle Seal Kit Back Catalog number: CTS-21422 Availability: In the manufacturer's stock Price on request - + Recommended CTS-A11133 Tube Assembly, Transducer to Check Valve Price on request CTS-00230-02 O-Ring, PTFE Price on request PS7025600 MarvelXACT™ PEEKsil™ 25µm ID x 600mm Price on request