Compatibility: Perfectly designed for X40 Ultra, this liquid adding module is also compatible with for X30 Ultra, L10s Pro Ultra, and S20 models, ensuring a versatile fit for your robot vacuum cleaner. Enhanced Cleaning Efficiency: Enhance your cleaning experience by seamlessly integrating this module into your vacuum, allowing for an effective cleaning solution distribution that tackles tough stains and ensures a thorough clean. and Reliable: Crafted from high-quality materials, this spare part is built to last, ensuring long-term performance and reliability for your home cleaning needs. Easy Installation: This module is designed for easy installation, allowing you to quickly upgrade your vacuum cleaner's functionality without the need for professional help. Color: As Shown Material: plastic Package Contents: 1 x Liquid Adding Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.