●Due to Roomba J7+/plus has two sizes of filters ,they looked very similar ,pls check the picture 2 in the listing ,we could provide both two sizes of them ,pls order after you confirm your OEM filter size ●The High-Effiiciency Filters are Compatible with iRobot Roomba E series E5 (E5134) E6 (E6198) E7 I series i7(7150) i7+ i7 plus(7550) i1+(1552) i4+(4550 4552)i3+(3550) i6+(6550) i8+(8550) Combo J5 Plus Combo i5 /Plus NOT for Combo J9 ●Easy to replace and install ,workWhats in the box:12 pieces of High-Effiiciency Filters,Brush tool X1ing as good as OEM ones ●its better to replace it every 2-3 months to keep the roomba at the best working condition ●If there is any issue ,pls contact us we will provide a solution in 24 hours