Gold Plunger Seal Back Catalog number: 11-4133 Manufacturer: SCIENCIX Availability: In the manufacturer's stock Price on request - + Recommended 11-1602 Seal, Polyethylene, High Pressure, Piston Price on request 11-2529 Screw, Comp., 10-32, 304SS, (Gold-Plated), 10/pk Price on request CTS-10322 Ceramic Plunger Price on request