O-Ring, PTFE Back Catalog number: CTS-00230-02 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-11141 ACQUITY SM Performance Maintenance Kit, 700005236 Price on request 11-2588 Main Piston Seal Price on request 11-2587 Piston Seal Wash Seal/Priming Valve Seal Price on request