Gold Plunger Seal Back Catalog number: 11-4133 Manufacturer: SCIENCIX Availability: In the manufacturer's stock Price on request - + Recommended 11-3832 Wash Seal, PE, 1220, 1260, 1290 Price on request CTS-5746 Reference Valve Rebuild Kit Price on request 11-4150 Tubing D-R Assembly Price on request