Designed to meet the rigorous demands of the cleaning professional. the SIMPSON^® Aluminum Water Blaster series frame is crafted of aircraft-grade aluminum. making it lighter in weight than most steel frame pressure washer designs. Perfect for contractors who specialize in deck cleaning. wood restoration. paint preparation. graffiti removal. and all other professional cleaning services. The SIMPSON Aluminum Water Blaster series designed for optimum performance in the harshest environments. Equipped with a premium HONDA^® engine and a reliable CAT PUMP^®.