General description Made of high-strength and environmentally friendly materials, this Primary HEPA Filter and Side Brush set is designed to enhance the performance of your Robovac 11S, 12, 15T, 15C, 25C, 30, 30C, and 35C robot cleaners. Regular replacement of these components is essential for maintaining optimal cleaning efficiency. Technical specifications Material: Plastic Size: 16.6 cm Package Contents: 2 x main brushes, 6 x filter screens, 6 x side brushes Measurement allowed error: +/- 1-3 cm Usage Replace the filter every 2-3 months to extend the life of your vacuum. If side brushes are bent due to shipping, recover them by soaking in warm water for a while. Replace old, broken, or dirty parts to improve the cleaning ability of the robot. Other information Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product.