The package includes 12 filters, ideal for replacing your old filter. Compatible with Roomba i& e i& e series i1 i3 i4 i6 i7 i8 e5 e6 + J7 robot vacuum cleaners (not for J7+)! The filters maintain the vacuum's cleaning performance, reducing infiltration into your breathing. Replace the accessories regularly to keep your robot vacuum at peak performance and maintain a cleaner home environment. All spare parts we sell are replacement products, they are not original spare parts.