The package includes 12 replacement filters, ideal for your old ones. Compatible with Roomba i&e series i&e robot vacuums: i1, i3, i4, i6, i7, i8, e5, e6+, J7 (Not for J7+)!!! The filters maintain the vacuum's cleaning performance, reducing the amount of dust that enters your lungs. Regularly replace the filters to keep your robot vacuum performing at its best and maintain a cleaner home environment. All the spare parts we sell are replacement parts; they are not original spare parts.