The ultra portable battery-powered Hydroshot delivers just the right amount of cleaning power without causing damage like a standard pressure washer might. With a maximum PSI of 415 and a working PSI of 320, this power washer is great for cleaning window screens, beach gear, grills, outdoor furniture, cars, boats and more. The Hydroshot goes everywhere - simply drop the included draw hose in a body of freshwater or use the bottle connector and bring your own.