Plunger Wash Seal Back Catalog number: CTS-10391 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-11149 Needle Seal O-Ring, 002 Kalrez Price on request 11-2642 Needle Port Seal, AS-100, ASI-100T Price on request CTS-A159 Inlet Check Valve Price on request