Compatible Models: This water tank is compatible with Roborock S7, T7S, T7S Plus, and G10, providing a superior user experience. (Product dimensions: approx. 21 x 5.9 x 4.5 cm). Please confirm your robot model before purchasing. The CTDMJ-designed water tank for Roborock S7 enhances the machine's performance, making cleaning smoother and faster. Premium Water Tank: The Roborock S7 water tank is made of high-quality ABS material, with fine workmanship, durability, and resistance to damage. Large capacity design, energy and water-saving, excellent sealing, and more convenient mopping. Easy Installation: As part of the routine maintenance for your robot vacuum cleaner, the water tank can be easily disassembled and replaced. You can directly replace old or damaged parts to improve suction power and ensure the vacuum cleaner is always in good condition. Enhanced Performance: A quick replacement of parts helps your robot vacuum cleaner maintain good cleaning performance. Use the mopping function after vacuuming for extra cleaning, which improves floor cleaning efficiency and maintains the robot vacuum cleaner's optimal performance.