Orbiter Green Scrub BrushThis scrub brush fits directly onto our Oreck 12 inch Orbiter and is great for commercial use! It has . 015" poly bristles and is versatile enough to be used on all hard floor types. It is the brush of choice for everyday use and is slightly more aggressive than the light duty Oreck scrub brush, but less aggressive than the blue ceramic tile brush and orange heavy duty brush. 12 0. 016" Poly Bristles Medium Scrubbing Fits on the Oreck Orbiter