O-Ring, PTFE Back Catalog number: CTS-11092 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21469 250 μL Syringe, High Pressure Price on request CTS-A094 Check Valve Cartridge, 2/pk Price on request CTS-11335 ACQUITY H-Class QSM Performance Maintenance Kit Price on request