Piston Seal Backup Ring Back Catalog number: CTS-10759 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-11149 Needle Seal O-Ring, 002 Kalrez Price on request 11-1602 Seal, Polyethylene, High Pressure, Piston Price on request CTS-10323 Sapphire Plunger Price on request