PROFESSIONAL 15" SURFACE CLEANER : The pressure washer is equipped with two high-pressure rotating jets that spin rapidly, effectively breaking up dirt and grime. The working pressure is up to 4200 PSI, with a required minimum pressure of 800 PSI and a minimum flow rate of 2 GPM, and a maximum flow rate of 8.6 GPM. SPLASH-FREE SKIRT & HIGH COMPATIBILITY : The pressure washer is designed with a splash-free skirt, ensuring a clean and mess-free operation. It features a 1/4" quick plug, making it easy to connect with the included pressure washer lance or other 1/4" quick connect fittings. 360 FLEXIBLE CASTORS : The pressure washer surface cleaner is equipped with four 360 flexible castors, allowing for quick and effortless movement. You can easily maneuver the cleaner in any direction without exerting much force.