The Pentair SuperFlo VS Pump is a variable speed pool pump that can run on different voltages and save up to 80% on energy costs. It is a medium sized head pump with 1.5″ plumbing and union connections. It has a quiet, fan-cooled motor and a graphical display with a timer. It is suitable for standard pools that require up to 1.5HP. It is a direct replacement for Pentair SuperFlow pumps and the Hayward Super Pump. It has many good amazon reviews.