Replacement Parts for iRobot Roomba i7(7150) i7+(7550) i3(3150) i3+ i4 i4+ i6 i6+ i8 i8+ E5 E6 E7 Vacuum Cleaner (2+4+4) PERFECT FIT ? Compatible with iRobot Roomba Combo J7+. This set works as great as the original ones, precision fit and easy install. Highly Performance ? Premium side brush reaches deep into corners and edges to remove more dirt and debris. The HEPA filter blocks 99.97% of particles as small as 0.3 microns in size. Easy to Clean and Replace ? Clean by hand washing in warm water and let it completely air dry before reusing them. Regularly clean replacements parts to improve suction and performance and extends the life of your robot vacuum. For best results, edge-sweeping brushes and filters should be replaced every 1 - 3 months.Multi-surface rubber brushes should be replaced every 3-6 months. Buy with confidence. Check out our reviews. Also, happy to combine shipping to save you when you buy multiple items.