BE Pressure's 20" Whirlaway is the ideal surface cleaner for any professional or regular domestic user looking for deeper and more comprehensive cleaning options. This Whirlaway cleans flat surfaces quickly, easily, and evenly. It features a hover action, which is ideal for cleaning aggregate, stamped concrete and other flat surfaces, this flat surface cleaner prevents what is sometimes known as zebra striping or streaking, and increases your cleaning time over a regular nozzle.