Oreck Floor Machine Union Mix Brush - 13" Overall Diameter - 1 Each - Tan Union mix brush features natural fibers to effectively get inside the cracks of wood floors. Easy-to-install design allows fast, simple replacement to minimize your time spent on maintenance. Multipurpose construction polishes floors and lightly scrubs tile, stone and hardwood floor surfaces. Union mix brush is designed for use with Oreck Orbiter ultra, Orbiter, and ceramic and stone floor cleaners (each sold separately).