Visual MODFLOW Flex is a 3D groundwater flow and pollution transport model, known as the industry standard, that can integrate seamlessly into powerful numerical models, 3D conceptual models, evaluation and creation of aquifer systems, and imaging tools developed for calibration. Benefits More reliable and accurate decisions can be made, model reliability can be improved by reducing the risk and directly comparing the model scenarios with multiple inputs. With the integrated 3D conceptual modeling, there is no need to rebuild the model. Flexible grid type options eliminate conflict problems. With 64-bit support, large and more complex models can be operated. Users can develop modeling skills with step-by-step modeling guides.