Compatible with Multiple Models: The vacuum bag replacement part is compatible with most automatic dirt disposal models. Compatible with i and j series, i7 i7+ i3 i3+ i4 i4+ i6 i6+ i8 i8+ j7 j7+/Plus E5 E6 E7 vacuum cleaner. Good Performance: The vacuums for are made of melt-blown fiber filter layer and non-woven fabric, which have good sealing performance and block dust particles. The vacuum filter blocks 99.97% of dust, dirt and other particles as small as 0.3 Micrometer. Large Capacity: Each vacuum bag can hold 30 bins of dust and debris. And thanks to the improved inlet hole and well-sealed edge, there are no dust clouds. Maintenance Instructions: Change the filter every month to ensure your robot vacuum cleaners work at their best. It depends on how often you use it. Package: The vacuum cleaner replacement parts set includes 8 vacuum cleaner parts and 2 filters. Easy to install while providing good working performance. Material: Plastic + Non-woven Color: As shown Package