Comes with a new ultrafine 3D filter as a standard feature. The filters are easy to reach from the top of the cleaner. Maximum suction. PVA wheels The best quality for a better grip on slick surfaces. AquaSmart software and gryroscope hardware scans and maps pool for a complete clean* Light weight design and top access catridges with clear viewing lid Saves water, by reducing backwashing needs Four wheel drive with grooved PVA wheels to suit all pool interiors* Models for floor only or floor and wall cleaning The LED indicator shows when the filter is full.