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 11-4150 Tubing D-R Assembly Price on request CTS-A145 Inlet Check Valve Price on request 11-3332 100μL Syringe for WPS-3000 Series Price on request