Head Plunger Seal, 2/pk Back Catalog number: CTS-11119-02 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-00230-02 O-Ring, PTFE Price on request CTS-A138 Ceramic Plunger Assembly Price on request 11-3601 ACQUITY H SM-FTN Performance Main. Kit,700005236 n Price on request