30 gallon, electric, medium height, water heater, dual 4500w, 240v elements, 3" insulation, .95 energy factor,recovery at a 90¼ rise-gallons/ hours 21, first hour rating 43, t & p valve, pex polymer lined heat trap nipples, pex dip tube, glass lined tank, aluminum anode rod, dimensions: 39-3/4"h x 22"d, 6 year tank & parts warranty, meets new naeca 2015 efficiency standards.