250 μL Syringe, High Pressure Back Catalog number: CTS-21469 Availability: In the manufacturer's stock Price on request - + Recommended CTS-11119-02 Head Plunger Seal, 2/pk Price on request 11-3889 Needle Seat Assembly, 0.12mm ID Price on request CTS-A11094-02 UPLC Primary Check Valve Assy, 2/pk Price on request