O-Ring, PTFE Back Catalog number: CTS-11092 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-1602 Seal, Polyethylene, High Pressure, Piston Price on request 11-2891 PTFE Diaphragm, 2/pk Price on request CTS-11093-02 Plunger, 2/pk Price on request