250 μL Syringe, High Pressure Back Catalog number: CTS-21469 Availability: In the manufacturer's stock Price on request - + Recommended CTS-A11095 Check Valve, Double Ball & Seat Price on request CTS-10566 Alliance Head Plunger Seal Kit, 2/pk Price on request CTS-21280 Lamp, ACQUITY Arc/UPLC PDA Performance Maintenance Price on request