iRobot Authentic Replacement Parts- Roomba s Series Replenishment Kit, (3 filters, 3 Corner Brushes, 1 Set of Multi-Surface Rubber Brushes)Roomba s Series Replenishment Kit. Includes 3 filters, 3 Corner Brushes, 1 Set of Multi Surface Rubber Brushes. The High Efficiency Filter is made from a special material that captures 99% of mold, pollen, and dust mite allergens. The Corner Brush is specially designed at a 26 degree angle, using five 30mm brushes to clean deep into corners and along wall edges. The wide Dual Rubber Brushes clean large areas efficiently and work together to help get