Waters 616 Quaternary Pump with stainless steel flow path features 50 ul pump head volume, maximum pressure 5000 psi (351.5 kg/cm2) and 0.01 to 5.0 ml/min operating flow rate. This pump has 4 solvent inlets and built in gradient control. It also can be remotely controlled by external equipment. The gradient formation is performed by a low pressure gradient valve. System volume of<400µL that allows you to use 1-2 mm ID microbore columns for sample conservation and enhanced detection sensitivity.
This refurbished Waters 616 Quaternary Pump is in great condition. It has been tested at SpectraLab Scientific. A 90 day warranty is included. Multiple available.