Simpson Cleaning 80160 Universal Pressure Washer Spray Gun with Side Assist Handle for Cold Water Pressure Washers, 4500 PSI Universal to fit standard M22 or QC high pressure hose connections (QC adaptor included) Equipped with a trigger safety lock-out Ergonomic design and easy pull trigger for comfort and ease of use 360 Degree rotating side assist handle for added control and comfort Rated up to 4500 PSI for cold water use only