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-10476 Sapphire Plunger, Alliance Price on request CTS-A117 Inlet Check Valve Price on request CTS-21469 250 μL Syringe, High Pressure Price on request