Looks like this is going to be the new intelliflo to replace model 011018. New model number is 011055 and is called the intelliflo 2 VST. You can go to energystar.gov website and compare the 2 models. Looks like a more efficient wet end. A few other bells and whistles about it on Pentair site. First number is for 01118 the second number is for 0011055
Curve-A Energy Factor (gallons/Wh) : 11.43 17.65
Curve-C Energy Factor (gallons/Wh) : 14.52 23.16
Curve-B Energy Factor (gallons/Wh) : 7.03 11.32
Curve-A Energy Factor (gallons/Wh) : 11.43 17.65
Curve-C Energy Factor (gallons/Wh) : 14.52 23.16
Curve-B Energy Factor (gallons/Wh) : 7.03 11.32