O-Ring, PTFE Back Catalog number: CTS-00230-02 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21422 Needle Seal Kit Price on request CTS-21469 250 μL Syringe, High Pressure Price on request CTS-3209 Syringe Seal, 250μL/2500μL Price on request