[High Efficiency Filter]: Composed of composite PP and PET filter out paper, this i3 robot vacuum cleaner filter out substitute can effectively block 99% of pollution as small as zero Micrometres, making a huge contribution to preserving the health of your family. [Roomba E I Series Filter]: This i7 vacuum filter replacement is acceptable for iRobot Roomba e, i and j sequence E5(5150) E6(6198) i3(3150) i3+(3550) i4(4150) i4+ i6 +( 6550) i7(7150) ) i7+i7+(7550) i8 i8+ j7(7150) j7+(7550) Plus Robot Vacuum Cleaner. Note: Roomba j7+/plus clear out is supplied in two sizes, they give the impression of being very similar, please verify product length 2 in the picture. [Easy to Install]: This high-efficiency filter out substitute is so easy to put in in your vacuum cleaner, no devices required. Tip: To hold your robot vacuum operating at optimal performance, we endorse cleaning the filter with a small cleaning brush once per week or two times a week, cleaning it with pets at home, and changing it every 2-3 months once. [Cleaning Methods and Recommendations]In order to guard the electrostatic adsorption ability, please use a small cleaning brush to flippantly clean the i3 i7 robot vacuum cleaner filter out aspects regularly with replacement, which will convey income and expand the HEPA carrier lifestyles by way of three times. Please word that this i3 robotic vacuum cleaner filter out alternative is never washable. [Package List]The package includes 12 high-efficiency i3 i7 robot vacuum filters. This robotic vacuum filter alternative measures 2 inches x 1 inches x 0 inches. Before purchasing, check the dimensions of your substitute vacuum filter, especially the Roomba j7++ model, which comes in two sizes. Colour:black Material:hepa Package Contents: 12 x Filters Only the above kit content, different merchandise shouldn't included. Note: Light reflection and assorted reveals may cause the color of the item within the picture slightly assorted from the genuine thing. The measurement allowed error is +/- 1-3cm.