● Fit Model: Compatible with iRobot Roomba i series i7(7150), i7 plus (7550), E series E5, E6 E7 wifi connected robot vacuum, keeping your i7 vacuum at peak performance. ● Function&Material: Made of high quality PC, fully use of efficient filter material. ● Suggestion: To keep your Roomba operating at peak performance,these filters, rollers and side brushes should be replaced every 2 - 3 months. ● What's in the box: 16pcs Hepa Filters, ,A free cleaning brush and some screws, with the I-clean best service. ● Promise :100% guaranteed satisfaction. Any problems, 30 days ensure refund. I-clean will provide the best service for you.