1. Packing list: 6 clean filters and 1 brush. 2. Compatible with iRobot roomba E&I&J series: i7 i7+i3 i3+i4 i4+i6 i6+i8 i8+j7 j7+/Plus E5 E6 E7 vacuum cleaner set. 3. Easy to install and replace, easy to use. 4. To maintain optimal performance of your robot vacuum, clean the filter once a week (twice a week in homes with pets) and replace it every 2-3 months. 5. Note: Not compatible with ROOMBA COMBO J7+
