Grundfos invented the In-Line Vertical Multistage Pump. With a multitude of sizes, options, and best in class energy efficiency – the Grundfos CR(E) pump is the leader in the marketplace for In-Line Vertical Multi-Stage Pumps. These units are available with fully integrated Grundfos VFDs mounted directly on the motor – “MLE” Motors. Available as stand alone units or as pump smart pump skids under the Grundfos BoosterpaQ Hydro MPC product line.