www.supplyht.com/articles/94557-product-preview-efficient-sump-pump-series
Product Preview…Efficient Sump Pump Series
May 2, 2010

Liberty Pumps’ 250-Series cast iron sump pumps feature an efficient motor design that uses less energy than other pumps utilizing shaded-pole motor designs. This translates into more than 40% less energy usage than pumps of comparable horsepower. The 250-series features a one-piece unibody motor housing, stainless steel intake plate and can handle 1/2-inch solids.
Liberty Pumps.
Circle 237