[Compatibility Assurance]: your for 8490 Ultimate Ultra Power / 7490 Ultimate Home X-Treme , Robot Vacuum Cleaner operates at its best with our comprehensive accessory kit. Please verify your model before purchase to compatibility and optimal performance. [Enhanced Main Brush]: Experience superior cleaning with our upgraded main brush. The roller brush effectively captures dust and debris from floors and carpets, enhancing suction and ensuring thorough dirt removal for a cleaner home. [Advanced HEPA Filter]: Our premium HEPA filters help maintain a healthier living environment by trapping dust, pollen, and other allergens. Enjoy fresher air and reduced allergenic particles, making your home for family members sensitive to airborne irritants. [Efficient Dust Bag Design]: Keep your surroundings pristine with our dust bags designed for maximum containment. Featuring a robust sealing technology, these bags prevent dust leakage and trap 99.999% of fine dust with a multi-layered filtration