Needle Seal (For pH 1-14, for operation up to 130 Back Catalog number: CTS-21089 Availability: In the manufacturer's stock Price on request - + Recommended CTS-2963 Backup Seal Price on request CTS-21469 250 μL Syringe, High Pressure Price on request CTS-A11372 Tube Assy, Transducer to Check Valve, I2V Price on request