Generac 7019 OneWash 3,100 PSI, 2.4 GPM, Gas Powered Pressure Washer and PowerDial Gun Ergonomic spray gun with integrated Power Dial allows you to easily adjust the pressure needed between four different tasks - car, wood, concrete and soap - at your fingertips Powerful horizontal axial cam pump delivers 3100 PSI for tough cleaning Convenient on-board 1/2 gallon detergent tank for hassle free cleaning Generac 196cc OHV engine delivers maximum cleaning performance 25 foot high pressure hose connects to the rear of the spray gun for maximum convenience