Performance Autosampler Needle Back Catalog number: CTS-7550 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-11119-02 Head Plunger Seal, 2/pk Price on request CTS-A11095-02 UPLC Check Valve, Double Ball & Seat, 2/pk Price on request 11-4048 PEEK™ Needle Seal, SIL-30AC, SIL-30ACMP Price on request