This polypropylene floor scrubbing brush is designed to fit on the now discontinued Powr-Flite Predator 14 Battery Auto Scrubber and is great for everyday cleaning and scrubbing. These brushes tend to outlast pads 100 to 1 and is a great option for any type of floor. They are especially great for uneven surfaces, just like unfinished concrete and grouted tile. We also offer a pad driver if you would like to equip your Predator 14 with pads. For other brush options, view the full line of auto scrubber brushes to find the right brush for your machine.