Compatible with S5, S7, and S7 Pro robots. The main brush, side brush, and water tank filter are engineered to the specifications of these models and aligned with the robot's installation positions. After installation, they fit tightly and do not loosen, supporting both cleaning and mopping system operations. Main brush design and benefits Spiral bristle arrangement with a combination of soft and hard bristles. The length and shaft diameter match the robot's drive for stable, smooth rotation. During operation, the brush penetrates deep into floor gaps to lift dust and debris and helps dislodge impurities from carpet fibers. Anti entanglement shields at both ends reduce hair buildup and make maintenance simpler. Edge brush cleaning performance Edge brush is made from a tough material and sized for the robot model's cleaning radius. When rotating, it reaches into corners near walls and furniture to pull dust into the main brush range, reducing blind spots. The brush body is light, odorless, and does not scratch floors, helping preserve floor finishes. Water tank filter efficiency The water tank filter uses fine materials to intercept sediment and particles in the water. Prevents blockages at the outlet or mop attachment, ensures a uniform water flow for mopping, and helps prevent scratching hard surfaces while keeping floors clean. Practical use scenarios Daily hard floor cleaning with mopping: Consistent water flow and edgetoedge coverage improve cleaning efficiency on tile and hardwood, while the main brush design handles particles and hair. Carpet and hair removal: The spiral bristle layout and anti entanglement shields reduce hair wrap and enhance debris capture on low to midpile carpets. Corners and edge cleaning: The robust edge brush reaches along walls and around furniture legs, minimizing missed spots and leaving edges cleaner.