Powered by Briggs & Stratton 10 gross HP Intek™Pro OHV engine for performance, reliability and a network of nationwide service providers. All terrain never flat puncture resistant wheels and a light frame make it easy to move around the house to clean surfaces such as driveways, pavers, windows or gutters. Petrol power gives greater portability and freedom from power cords and electrical hazards. Detergent injection system increases cleaning power. 5 interchangeable nozzles for varied pressure rates and cleaning tasks.