Perfect Compatibility: Tailor-made for L20 Ultra /L30 Ultra/X20 PRO/PLUS models, this replacement dust box and filter set ensures seamless compatibility and restores efficiency, making it an essential maintenance part for your robot vacuum cleaner. Enhanced Dust Capacity: This replacement dust box features a transparent large-capacity dust box, allowing you to easily monitor the filling level. This design helps extend cleaning time and minimize interruptions, making it an ideal choice for maintaining a clean and environment. Simple Installation Process: This dust box is equipped with a quick release device, making the removal and replacement process simple and convenient. Easily upgrade and maintain the performance of your vacuum cleaner to it runs at optimal efficiency. Construction: The dust box is made of sturdy plastic. This design ensures that the internal mechanism of the vacuum cleaner is protected from debris, thereby extending the life of the device. Compatible Models: For