General description AlwaysH 4PCS Replacement Accessories Kit includes a filter, main brush, and spare side brush designed for iRobot Roomba Series I, iRobot i7, E5, and E6. This kit helps maintain your vacuum's peak performance. Technical specifications Includes: 1 filter, 1 main brush, 2 side brushes Compatible with: iRobot Roomba Series I, iRobot i7, E5, E6 Installation Remove the old main brush, filter, and side brush Replace with the new accessories from the kit Usage Replace the disposable brush and spare filter every 2-3 months, depending on usage Ensures optimal cleaning performance