Plunger Seal Back Catalog number: CTS-10694 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-11149 Needle Seal O-Ring, 002 Kalrez Price on request CTS-21163 Rotor Seal, 2-Groove Price on request CTS-A11133 Tube Assembly, Transducer to Check Valve Price on request