Pentair Max-E ProXF™ 023033-INT Pool Pump 3HP 208-230V 60Hz 14.6 Amp EXPORT ONLY. The new Max-E-ProXF™ was developed using the most advanced computer-aided design and manufacturing (CAD/CAM) plus Computational Fluid Dynamics (CFD) and Finite Element Analysis (FEA). The proprietary impeller design delivers a higher level of precision concentricity for increased effciency. The proprietary hydraulic isolator smooths the priming water at start-up and also smooths the flow inside the volute, raising the efficiency even higher. With outstanding performance from both a maximum-flow and mean-flow perspective, the Max-E-ProXF is an ideal choice for residential pools with water features such as slides and waterfalls, as well as commercial pools.