Features: Clean Brush: Keep your home robots at peak performance. The filter is suitable for the replacement of the Bissell Crosswave series vacuum cleaner robot filters. The filter keeps the vacuum cleaner clean while reducing the penetration of allergens of dust, pollen and other substances into the air. Made of high quality ABS materials: This product is durable and practical. Light and compact: It is convenient to use. Specification: Package weight: about 318g Product Size: Roller length: approx. 255mm / 10.0inch Filter: approx. 95*75*32mm / 3.7*3.0*1.3in ch Material: ABS Compatible with: for Bissell Crossway 1785, 17852, 17853, 17854, 17855, 17856, 17858, 17859, 1785a, 1785b, 1785f, 1785g, 1785p, 1785q, 1785t, 1785v, 1785w Robotic Vacuum Cleaner Project Package List: 2 * For HEPA filter 2 * Roller brush Note: For best results, spare parts should be replaced every 1-3 months. Available only for Bissell Crosswave 1785 Series.