5.5 peak HP motor with super quiet operation. Pump feature eliminates the need to lift and carry fully-loaded tank to empty liquid. Pumps up to 6 gallon per minute. Simply attach standard garden hose to pump to drain tank. Pump is self-priming and pumps to heights of 50'. Rear tool, on-board storage for basic included 1-1/4" accessories. 18' power cord. 190 cfm (cubic feet per minute). 4 year warranty.