Sapphire Plunger Back Catalog number: CTS-5656 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-1602 Seal, Polyethylene, High Pressure, Piston Price on request CTS-11149 Needle Seal O-Ring, 002 Kalrez Price on request CTS-10340 Plunger Seal Price on request