Heavy Duty Concrete Driveway Pressure Washer Floor Surface Cleaner 20"Heavy Duty Concrete Driveway Pressure Washer Floor Surface Cleaner 20" Heavily cleanse surfaces by powering up our premium pressure washer surface cleaner and passing it over hard to clean areas. Equipped with two rotary nozzles, the power washer surface cleaner sprays out powerful streams of water with extreme ease. Not only that, but the driveway pressure washer attachment has a 20 inch nozzle that enables you to clean large surfaces without a